Is 42773359 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 42 773 359 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 42 773 359, the only two divisors are 1 and 42 773 359. Therefore 42 773 359 is a prime number.
As a consequence, 42 773 359 is only a multiple of 1 and 42 773 359.
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Since 42773359 is a prime number, 42773359 is also a deficient number, that is to say 42773359 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 42773359 without 42773359 itself (that is 1, by definition!).