Is 42042227 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 42 042 227 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 42 042 227, the only two divisors are 1 and 42 042 227. Therefore 42 042 227 is a prime number.
As a consequence, 42 042 227 is only a multiple of 1 and 42 042 227.
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Since 42042227 is a prime number, 42042227 is also a deficient number, that is to say 42042227 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 42042227 without 42042227 itself (that is 1, by definition!).