Is 67090489 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 67 090 489 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 67 090 489, the only two divisors are 1 and 67 090 489. Therefore 67 090 489 is a prime number.
As a consequence, 67 090 489 is only a multiple of 1 and 67 090 489.
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Since 67090489 is a prime number, 67090489 is also a deficient number, that is to say 67090489 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 67090489 without 67090489 itself (that is 1, by definition!).