User contributions for Richard47
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27 June 2023
- 03:3603:36, 27 June 2023 diff hist +9 User:Richard47/Fake Proof for 1=2 No edit summary current
- 03:3503:35, 27 June 2023 diff hist +9 There are no 120 consecutive numbers which all have exactly 120 divisors No edit summary
- 03:3403:34, 27 June 2023 diff hist +77 There are no 120 consecutive numbers which all have exactly 120 divisors No edit summary
- 03:3203:32, 27 June 2023 diff hist +29 There are no 120 consecutive numbers which all have exactly 120 divisors No edit summary
- 03:3103:31, 27 June 2023 diff hist +61 User:Richard47/Fake Proof for 1=2 No edit summary
- 03:2903:29, 27 June 2023 diff hist −2 User:Richard47/Fake Proof for 1=2 No edit summary
- 03:2703:27, 27 June 2023 diff hist +1 User:Richard47/Fake Proof for 1=2 No edit summary
- 03:2603:26, 27 June 2023 diff hist 0 User:Richard47/Fake Proof for 1=2 No edit summary
4 May 2023
- 12:0712:07, 4 May 2023 diff hist +14 There exist no 4 Consecutive Triangular Numbers which are all Sphenic Numbers No edit summary
- 12:0412:04, 4 May 2023 diff hist +1 User:Richard47/Fake Proof for 1=2 No edit summary
- 12:0412:04, 4 May 2023 diff hist 0 User:Richard47/Fake Proof for 1=2 No edit summary
- 12:0212:02, 4 May 2023 diff hist +16 User:Richard47/Fake Proof for 1=2 No edit summary
- 12:0112:01, 4 May 2023 diff hist +192 User:Richard47/Fake Proof for 1=2 No edit summary
- 11:5311:53, 4 May 2023 diff hist +102 User:Richard47/Fake Proof for 1=2 No edit summary
- 11:5011:50, 4 May 2023 diff hist +3,015 N User:Richard47/Fake Proof for 1=2 Created page with "Prove that 1 = 2: First, we prove that the series 1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 + ... is absolutely convergent: Let A = sigma(1/n), n runs the integers not containing "9453" as substring then A = (1 + 1/2 + 1/3 + 1/4 + ... + 1/9451 + 1/9452 + 1/9454 + 1/9455 + 1/9456 + ... + 1/10000) + (1/10001 + 1/10002 + 1/10003 + ... + 1/19451 + 1/19452 + 1/19454 + 1/19455 + 1/19456 + ... + 1/29451 + 1/29452 + 1/29454 + 1/29455 + 1/29456 + ... + 1/94528 + 1/94529 + 1/94540 + 1/9454..."
- 11:4111:41, 4 May 2023 diff hist +30 There are no 120 consecutive numbers which all have exactly 120 divisors No edit summary
29 April 2023
- 12:3312:33, 29 April 2023 diff hist +12 There are no 120 consecutive numbers which all have exactly 120 divisors No edit summary
28 April 2023
- 06:0206:02, 28 April 2023 diff hist +2 There are no 120 consecutive numbers which all have exactly 120 divisors No edit summary
- 03:1703:17, 28 April 2023 diff hist +9 There are no 120 consecutive numbers which all have exactly 120 divisors No edit summary
16 April 2023
- 03:1303:13, 16 April 2023 diff hist +1 Numbers with All Digits Have a Common Factor are Divisible by This Factor No edit summary
- 03:0803:08, 16 April 2023 diff hist +609 N Numbers with All Digits Have a Common Factor are Divisible by This Factor We really need trivial proofs, just like the proof Null String has Length Zero
14 March 2023
- 00:2300:23, 14 March 2023 diff hist +2 Definition:Near-Repdigit Prime No edit summary
- 00:0400:04, 14 March 2023 diff hist +26 N Category:Near-Repdigit Primes Created page with "Category:Prime Numbers"
- 00:0300:03, 14 March 2023 diff hist +33 N Category:Near-Repdigit Primes/Examples Created page with "Category:Near-repdigit Primes"
- 00:0200:02, 14 March 2023 diff hist +29 N Category:555,555,555,551 Created page with "Category:Specific Numbers" current
- 00:0200:02, 14 March 2023 diff hist +242 555,555,555,551 No edit summary
13 March 2023
- 23:5923:59, 13 March 2023 diff hist +1,322 N 555,555,555,551 Created page with "{{NumberPageLink|prev = 555,555,555,550|next = 555,555,555,552}} == Number == $555 \, 555 \, 555 \, 551$ ('''sixty-six million, six hundred thousand and forty-nine''') is: :The $21, \, 366, \, 409, \, 911$th prime number :The 412nd near-repdigit prime :The $76$th minimal prime base $10$ after $11$, $13$, $17$, $19$, $23$, $29$, $31$, $37$, $4..."
- 23:5423:54, 13 March 2023 diff hist +84 N Definition:Proper Substring Redirected page to Definition:Substring/Proper Tag: New redirect
- 23:5323:53, 13 March 2023 diff hist +43 Definition:Substring/Proper No edit summary
- 23:5323:53, 13 March 2023 diff hist +630 N Definition:Substring/Proper Created page with "== Definition == Let $\LL$ be a formal language with alphabet $\AA$. Let $S$ be a string in $\AA$. Let $T$ be a string in $\AA$ such that: :$S = S_1 T S_2$ where: :$S_1$ and $S_2$ are strings in $\AA$ (possibly null); :$S_1 T S_2$ is the concatenation of $S_1..."
- 23:5023:50, 13 March 2023 diff hist 0 Minimal Prime/Examples No edit summary Tag: Reverted
- 23:5023:50, 13 March 2023 diff hist +80 Minimal Prime/Examples No edit summary Tag: Reverted
- 23:4723:47, 13 March 2023 diff hist +40 Definition:Near-Repdigit Prime No edit summary
- 23:4623:46, 13 March 2023 diff hist 0 Definition:Near-Repdigit Prime No edit summary
- 23:4623:46, 13 March 2023 diff hist +433 N Definition:Near-Repdigit Prime Created page with "Near-repdigit prime are Definition:Prime Number primes with $\ge 3$ digits with only one digit different from others, the first few such primes are 101, 113, 131, 151, 181, 191, 199, 211, 223, 227, 229, 233, 277, 311, 313, 331, 337, 353, 373, 383, 433, 443, 449, 499, 557, 577, 599, 661, 677, 727, 733, 757, 773, 787, 797, 811, 877, 881, 883, 887, 911, 919, 929, 977, 991, 997, 1117, 1151, 1171, 1181, 1511, ... {{OEIS|A164937}}"
- 23:4323:43, 13 March 2023 diff hist +1 Definition:Wall-Sun-Sun Prime No edit summary
- 23:4223:42, 13 March 2023 diff hist 0 Definition:Wall-Sun-Sun Prime No edit summary
- 23:4223:42, 13 March 2023 diff hist +102 Definition:Wall-Sun-Sun Prime No edit summary
- 23:4123:41, 13 March 2023 diff hist +234 N Definition:Wall-Sun-Sun Prime Created page with "== Definition == <onlyinclude> A '''Wall-Sun-Sun prime''' is a prime number $p$ such that: :$p^2 \divides F_{p-(p|5)}$ where $\divides$ denotes divisibility. </onlyinclude>"
- 23:3623:36, 13 March 2023 diff hist +285 N Definition:Deletable Prime Created page with "A deletable prime is a prime number which has the property that deleting digits one at a time in some order gives a prime at each step. For example, 410256793 is a deletable prime since each member of the sequence 410256793, 41256793, 4125673, 415673, 45673, 4567, 467, 67, 7 is prime."
- 23:3023:30, 13 March 2023 diff hist +512 Minimal Prime/Sequence No edit summary Tag: Reverted
- 23:2823:28, 13 March 2023 diff hist +90 Definition:Minimal Prime I know, but I really like this definition…. Tag: Reverted
- 23:0523:05, 13 March 2023 diff hist +37 Definition:Empty String No edit summary
- 23:0423:04, 13 March 2023 diff hist +137 N Definition:Empty String Created page with "== Definition == <onlyinclude> The '''empty string''' is a string which has no characters."
- 22:5322:53, 13 March 2023 diff hist +107 Definition:Minimal Prime No edit summary Tags: Manual revert Reverted
- 22:3222:32, 13 March 2023 diff hist +255 Talk:Reciprocal of 83 has Prime Period No edit summary
12 March 2023
- 22:0722:07, 12 March 2023 diff hist +156 Sequence of Smallest Numbers whose Reciprocal has Period n I have made pages for 41 and 73 Tag: Reverted
11 March 2023
- 22:2722:27, 11 March 2023 diff hist +388 N Long Period Prime/Examples/47 Created page with "== Theorem == The decimal expansion of the reciprocal of $47$ has the maximum period, that is: $46$: :$\dfrac 1 {47} = 0 \cdotp \dot 02127 \, 65957 \, 44680 \, 85106 \, 38297 \, 87234 \, 04255 \, 31914 \, 89361 \, \dot 7$ {{OEIS|A021051}} Category:47 Category:Examples of Reciprocals"
- 16:1616:16, 11 March 2023 diff hist +28 Definition:Quintal Notation The standard name for base 5
- 16:1216:12, 11 March 2023 diff hist 0 Definition:Undecimal Notation No edit summary current