Is 43972979 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 43 972 979 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 43 972 979, the only two divisors are 1 and 43 972 979. Therefore 43 972 979 is a prime number.
As a consequence, 43 972 979 is only a multiple of 1 and 43 972 979.
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Since 43972979 is a prime number, 43972979 is also a deficient number, that is to say 43972979 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 43972979 without 43972979 itself (that is 1, by definition!).