274,177

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Number

$274 \, 177$ is:

The $23 \, 974$th prime.

One of the two prime factors of the $6$th Fermat number $2^{\paren {2^6} } + 1$, the other being $67 \, 280 \, 421 \, 310 \, 721$:

$274 \, 177 = 1071 \times 2^8 + 1$

Also see

• Previous  ... Next: Prime Number
• Next: Prime Decomposition of 6th Fermat Number

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $257$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $257$