Is 138980507 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 138 980 507 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 138 980 507, the only two divisors are 1 and 138 980 507. Therefore 138 980 507 is a prime number.
As a consequence, 138 980 507 is only a multiple of 1 and 138 980 507.
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Since 138980507 is a prime number, 138980507 is also a deficient number, that is to say 138980507 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 138980507 without 138980507 itself (that is 1, by definition!).