5,704,689,200,685,129,054,721

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Number

$5 \, 704 \, 689 \, 200 \, 685 \, 129 \, 054 \, 721$ is:

The $n$th prime, where $n$ remains to be determined

One of the two prime factors of the $7$th Fermat number $2^{\left({2^7}\right)} + 1$, the other being $59 \, 649 \, 589 \, 127 \, 497 \, 217$:

$5 \, 704 \, 689 \, 200 \, 685 \, 129 \, 054 \, 721 = 11 \, 141 \, 971 \, 095 \, 088 \, 142 \, 685 \times 2^9 + 1$

Also see

• Previous: Prime Decomposition of 7th Fermat Number