Q: Is 133,407 a Prime Number?
A: No, 133,407 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 133407 can be evenly divided by 1 3 9 27 61 81 183 243 549 729 1,647 2,187 4,941 14,823 44,469 and 133,407, with no remainder.
Since 133,407 cannot be divided by just 1 and 133,407, it is not a prime number.