Is 990241529 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 990 241 529 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 990 241 529, the only two divisors are 1 and 990 241 529. Therefore 990 241 529 is a prime number.
As a consequence, 990 241 529 is only a multiple of 1 and 990 241 529.
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Since 990241529 is a prime number, 990241529 is also a deficient number, that is to say 990241529 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 990241529 without 990241529 itself (that is 1, by definition!).