Is 748106987 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 748 106 987 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 748 106 987, the only two divisors are 1 and 748 106 987. Therefore 748 106 987 is a prime number.
As a consequence, 748 106 987 is only a multiple of 1 and 748 106 987.
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Since 748106987 is a prime number, 748106987 is also a deficient number, that is to say 748106987 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 748106987 without 748106987 itself (that is 1, by definition!).