1381

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Number

$1381$ (one thousand three hundred and eighty-one) is:

The $221$st prime number

The larger of the $19$th pair of primes whose prime gap is $8$:

$1381 - 1373 = 8$

The $27$th of $29$ primes of the form $2 x^2 + 29$:

$2 \times 26^2 + 29 = 1381$ (Previous  ... Next)

Also see

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