Is 67214509 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 67 214 509 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 67 214 509, the only two divisors are 1 and 67 214 509. Therefore 67 214 509 is a prime number.
As a consequence, 67 214 509 is only a multiple of 1 and 67 214 509.
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Since 67214509 is a prime number, 67214509 is also a deficient number, that is to say 67214509 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 67214509 without 67214509 itself (that is 1, by definition!).