61897...62111 (27-digits)

This number is a prime.

6189700 1964269013 7449562111

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The 10th Mersenne prime (2⁸⁹-1) was discovered by R. E. Powers in 1911 and published in The American Mathematical Monthly (Volume 18). It is the smallest Mersenne prime for which the number of primes less than or equal to it is not yet known.

Submitted: 2010-12-16 03:14:34; Last Modified: 2010-12-16 03:24:00.