23572...33373 (105-digits)

This number is a prime.

23572 3375373223 2272332572 7733735337
3523557577 7277337577 7322372273 2333235723 7725572753 2777325332 5733233373

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The concatenation of the first thirty-five primes with only prime digits in increasing order is prime. [Patterson]

Submitted: 2004-08-16 12:42:22; Last Modified: 2008-01-30 17:28:00.