11314...81311 (43-digits)

This number is a prime.

                             113 1416171101 1311511811 9121124125 1271281311

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

+ The only prime less than a googol formed by concatenating in order the first n primes ending with 1, (n=16). [Loungrides]

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