Q: Is 123,859 a Prime Number?
A: No, 123,859 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 123859 can be evenly divided by 1 29 4,271 and 123,859, with no remainder.
Since 123,859 cannot be divided by just 1 and 123,859, it is not a prime number.