43

This number is a prime.

Just showing those entries submitted by 'Madachy': (Click here to show all)

43⁷ = 271818611107 = (2 + 7 + 1 + 8 + 1 + 8 + 6 + 1 + 1 + 1 + 0 + 7)⁷. [Madachy]