Is 120612743 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 120 612 743 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 120 612 743, the only two divisors are 1 and 120 612 743. Therefore 120 612 743 is a prime number.
As a consequence, 120 612 743 is only a multiple of 1 and 120 612 743.
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Since 120612743 is a prime number, 120612743 is also a deficient number, that is to say 120612743 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 120612743 without 120612743 itself (that is 1, by definition!).