127

This number is a prime.

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+ 127 is the first odd prime Motzkin number. [Post]

+ Smallest odd prime to count the number of ways to Goldbach partition of 10^n as the sum of two primes, when order doesn't matter. [Post]

+ The smallest regular prime nontrivially a partial sum of regular primes: 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 = 127, the 25th regular prime. [Post]

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