Today is 41 day of the year.

41 is prime.

41 is a Newman-Shanks-Williams prime.

41 is a Proth prime.

41 is a Sophie Germain prime.

41, 83, 167 is a Cunningham chain and the smallest chain of three primes.

41 = 2 + 3 + 5 + 7 + 11 + 13, the sum of the first six primes.

41 = 11 + 13 + 17, the sum of three consecutive primes.

41 is the second smallest integer that can be expressed as the sum of consecutive primes.

41 is a member of two primitive, Pythagorean triples (9, 40, 41) and (41, 840, 841).

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