Is 27426137 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 27 426 137 is a prime number.
Indeed, the definition of a prime numbers is to have exactly two distinct positive divisors, 1 and itself. A number is a divisor of another number when the remainder of Euclid’s division of the second one by the first one is zero. Concerning the number 27 426 137, the only two divisors are 1 and 27 426 137. Therefore 27 426 137 is a prime number.
As a consequence, 27 426 137 is only a multiple of 1 and 27 426 137.
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Since 27426137 is a prime number, 27426137 is also a deficient number, that is to say 27426137 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 27426137 without 27426137 itself (that is 1, by definition!).