100237

This number is a prime.

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100237 is the smallest six-digit prime that produces five other primes by changing only its first digit. I.e., 200237, 400237, 500237, 700237, and 800237 are primes. [Opao]

Submitted: 2003-12-30 08:50:26; Last Modified: 2008-01-30 17:28:00.