Is 67843609 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 67 843 609 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 67 843 609, the only two divisors are 1 and 67 843 609. Therefore 67 843 609 is a prime number.
As a consequence, 67 843 609 is only a multiple of 1 and 67 843 609.
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Since 67843609 is a prime number, 67843609 is also a deficient number, that is to say 67843609 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 67843609 without 67843609 itself (that is 1, by definition!).