Is 42707897 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 42 707 897 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 42 707 897, the only two divisors are 1 and 42 707 897. Therefore 42 707 897 is a prime number.
As a consequence, 42 707 897 is only a multiple of 1 and 42 707 897.
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Since 42707897 is a prime number, 42707897 is also a deficient number, that is to say 42707897 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 42707897 without 42707897 itself (that is 1, by definition!).