# Is 43135 a prime number?

It is possible to find out using mathematical methods whether a given integer is a prime number or not.

No, 43 135 is not a prime number.

For example, 43 135 can be divided by 5: 43 135 / 5 = 8 627.

Actually, one can immediately see that 43 135 cannot be prime, because 5 is one of its divisors: indeed, a number ending with 0 or 5 has necessarily 5 among its divisors.
The last digit of 43 135 is 5, so it is divisible by 5 and is therefore *not* prime.

For 43 135 to be a prime number, it would have been required that 43 135 has only two divisors, i.e., itself and 1.

Find out more: