2,759,640
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Number
$2 \, 759 \, 640$ (two million, seven hundred and fifty-nine thousand, six hundred and forty) is:
- $2^3 \times 3 \times 5 \times 13 \times 29 \times 61$
- The $3$rd and last positive integer $n$ after $15$, $22 \, 440$ such that $\pm n$ allows $x^5 - x + n$ to be factorized into the product of an irreducible quadratic and an irreducible cubic:
- $x^5 - x + 2 \, 759 \, 640 = \paren {x^2 + 12 x + 377} \paren {x^3 - 12 x^2 - 233 x + 7320}$
Also see
Sources
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $2,759,640$