Is 42934379 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 42 934 379 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 42 934 379, the only two divisors are 1 and 42 934 379. Therefore 42 934 379 is a prime number.
As a consequence, 42 934 379 is only a multiple of 1 and 42 934 379.
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Since 42934379 is a prime number, 42934379 is also a deficient number, that is to say 42934379 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 42934379 without 42934379 itself (that is 1, by definition!).