Is 42904429 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 42 904 429 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 42 904 429, the only two divisors are 1 and 42 904 429. Therefore 42 904 429 is a prime number.
As a consequence, 42 904 429 is only a multiple of 1 and 42 904 429.
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Since 42904429 is a prime number, 42904429 is also a deficient number, that is to say 42904429 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 42904429 without 42904429 itself (that is 1, by definition!).