541

This number is a prime.

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The smallest prime that can be written as the sum of the first n primes all of which are themselves the sum of the first n primes (541 = 5 + 17 + 41 + 197 + 281). [Hollesen]

Submitted: 2022-09-11 00:35:49; Last Modified: 2022-09-11 02:22:57.