Is 113372491 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 113 372 491 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 113 372 491, the only two divisors are 1 and 113 372 491. Therefore 113 372 491 is a prime number.
As a consequence, 113 372 491 is only a multiple of 1 and 113 372 491.
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Since 113372491 is a prime number, 113372491 is also a deficient number, that is to say 113372491 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 113372491 without 113372491 itself (that is 1, by definition!).