Is 31489489 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 31 489 489 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 31 489 489, the only two divisors are 1 and 31 489 489. Therefore 31 489 489 is a prime number.
As a consequence, 31 489 489 is only a multiple of 1 and 31 489 489.
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Since 31489489 is a prime number, 31489489 is also a deficient number, that is to say 31489489 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 31489489 without 31489489 itself (that is 1, by definition!).
