Is 47755991 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 47 755 991 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 47 755 991, the only two divisors are 1 and 47 755 991. Therefore 47 755 991 is a prime number.
As a consequence, 47 755 991 is only a multiple of 1 and 47 755 991.
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Since 47755991 is a prime number, 47755991 is also a deficient number, that is to say 47755991 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 47755991 without 47755991 itself (that is 1, by definition!).