Is 674472989 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 674 472 989 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 674 472 989, the only two divisors are 1 and 674 472 989. Therefore 674 472 989 is a prime number.
As a consequence, 674 472 989 is only a multiple of 1 and 674 472 989.
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Since 674472989 is a prime number, 674472989 is also a deficient number, that is to say 674472989 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 674472989 without 674472989 itself (that is 1, by definition!).