Q: Is 133,420 a Prime Number?
A: No, 133,420 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 133420 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 953 1,906 3,812 4,765 6,671 9,530 13,342 19,060 26,684 33,355 66,710 and 133,420, with no remainder.
Since 133,420 cannot be divided by just 1 and 133,420, it is not a prime number.