15148...48791 (56-digits)

This number is a prime.

               151489 5487264685 0196557152 4276048936 8530887702 2260348791

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2^3+5^7+11^13+17^19+23^29+31^37 = 15148954872646850196557152427604893685308877022260348791. The only non-titanic prime of this form. [Loungrides]