Is 42717179 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 42 717 179 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 42 717 179, the only two divisors are 1 and 42 717 179. Therefore 42 717 179 is a prime number.
As a consequence, 42 717 179 is only a multiple of 1 and 42 717 179.
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Since 42717179 is a prime number, 42717179 is also a deficient number, that is to say 42717179 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 42717179 without 42717179 itself (that is 1, by definition!).