20030...02357 (25-digits)

This number is a prime.

20030 0050000070 0000002357

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If you place the same number of zeros as the number itself for all single-digit primes then attach 2357, you will get another prime. [Bopardikar]

Submitted: 2026-10-15 13:55:28; Last Modified: 2026-10-15 14:04:26.