4031

This number is a composite.

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+ The semiprime 4031 is the sum of the cubes of the first 6 primes: 2^3 + 3^3 + 5^3 + 7^3 + 11^3 + 13^3 = 4031 = 29 * 139. Curiously, it shares a prime factor with the sum of the squares of the first 6 primes. 2^2 + 3^2 + 5^2 + 7^2 + 11^2 + 13^2 = 377 = 13 * 29. [Post]

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