Is 40011331 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 40 011 331 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 40 011 331, the only two divisors are 1 and 40 011 331. Therefore 40 011 331 is a prime number.
As a consequence, 40 011 331 is only a multiple of 1 and 40 011 331.
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Since 40011331 is a prime number, 40011331 is also a deficient number, that is to say 40011331 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 40011331 without 40011331 itself (that is 1, by definition!).