Q: Is 136,720 a Prime Number?
A: No, 136,720 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 136720 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 1,709 3,418 6,836 8,545 13,672 17,090 27,344 34,180 68,360 and 136,720, with no remainder.
Since 136,720 cannot be divided by just 1 and 136,720, it is not a prime number.