Is 988913791 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 988 913 791 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 988 913 791, the only two divisors are 1 and 988 913 791. Therefore 988 913 791 is a prime number.
As a consequence, 988 913 791 is only a multiple of 1 and 988 913 791.
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Since 988913791 is a prime number, 988913791 is also a deficient number, that is to say 988913791 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 988913791 without 988913791 itself (that is 1, by definition!).