Is 124703489 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 124 703 489 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 124 703 489, the only two divisors are 1 and 124 703 489. Therefore 124 703 489 is a prime number.
As a consequence, 124 703 489 is only a multiple of 1 and 124 703 489.
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Since 124703489 is a prime number, 124703489 is also a deficient number, that is to say 124703489 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 124703489 without 124703489 itself (that is 1, by definition!).