Prime Curios!: 25

25
(another Prime Pages' Curiosity)

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There are exactly 25 (a perfect square) primes beginning with the digit 1 among primes smaller than one thousand. It's more than for the other digits. [Capelle]

Submitted: 2003-07-21 06:42:20; Last Modified: 2008-01-30 11:28:00.