Q: Is 133,720 a Prime Number?
A: No, 133,720 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 133720 can be evenly divided by 1 2 4 5 8 10 20 40 3,343 6,686 13,372 16,715 26,744 33,430 66,860 and 133,720, with no remainder.
Since 133,720 cannot be divided by just 1 and 133,720, it is not a prime number.