Q: Is 136,857 a Prime Number?
A: No, 136,857 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 136857 can be evenly divided by 1 3 7 19 21 49 57 133 147 343 399 931 1,029 2,401 2,793 6,517 7,203 19,551 45,619 and 136,857, with no remainder.
Since 136,857 cannot be divided by just 1 and 136,857, it is not a prime number.