127

This number is a prime.

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127 is the 15th Fibonacci 7-step (heptanacci) number. Note that 2^7-1 = 127, making it the 4th Mersenne prime. [Loungrides]

Submitted: 2018-04-03 07:06:40;   Last Modified: 2018-04-04 06:15:46.
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