Is 138601163 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 138 601 163 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 138 601 163, the only two divisors are 1 and 138 601 163. Therefore 138 601 163 is a prime number.
As a consequence, 138 601 163 is only a multiple of 1 and 138 601 163.
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Since 138601163 is a prime number, 138601163 is also a deficient number, that is to say 138601163 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 138601163 without 138601163 itself (that is 1, by definition!).