43969...68961 (110-digits)

This number is a prime.

                                 4396978693 9269621239 8514276948 7965996497
2193373572 6052765470 4613162946 8448105886 9176624859 8695741453 1083768961

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The smallest odd prime of the form x^32 + y^32 such that x^2^k + y^2^k is prime for k = 0,1,2,3,4. This occurs for x = 720 and y = 2669. [Noe]