Is 67072121 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 67 072 121 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 67 072 121, the only two divisors are 1 and 67 072 121. Therefore 67 072 121 is a prime number.
As a consequence, 67 072 121 is only a multiple of 1 and 67 072 121.
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Since 67072121 is a prime number, 67072121 is also a deficient number, that is to say 67072121 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 67072121 without 67072121 itself (that is 1, by definition!).