Reciprocal of 451
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Theorem
The decimal expansion of the reciprocal of $451$ is as follows:
- $\dfrac 1 {451} = 0 \cdotp \dot 00221 \, 7294 \dot 9$
This sequence is A021455 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
Proof
Performing the calculation using long division:
0.0022172949002... ------------------- 451)1.0000000000000 902 --- 980 902 --- 780 451 --- 3290 3157 ---- 1330 902 ---- 4280 4059 ---- 2210 1804 ---- 4060 4059 ---- 1000 902 ---- ....
$\blacksquare$