Is 42487007 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 42 487 007 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 42 487 007, the only two divisors are 1 and 42 487 007. Therefore 42 487 007 is a prime number.
As a consequence, 42 487 007 is only a multiple of 1 and 42 487 007.
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Since 42487007 is a prime number, 42487007 is also a deficient number, that is to say 42487007 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 42487007 without 42487007 itself (that is 1, by definition!).