Q: Is 215,109 a Prime Number?
A: No, 215,109 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 215109 can be evenly divided by 1 3 9 27 31 93 257 279 771 837 2,313 6,939 7,967 23,901 71,703 and 215,109, with no remainder.
Since 215,109 cannot be divided by just 1 and 215,109, it is not a prime number.