Is 67479767 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 67 479 767 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 67 479 767, the only two divisors are 1 and 67 479 767. Therefore 67 479 767 is a prime number.
As a consequence, 67 479 767 is only a multiple of 1 and 67 479 767.
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Since 67479767 is a prime number, 67479767 is also a deficient number, that is to say 67479767 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 67479767 without 67479767 itself (that is 1, by definition!).