Q: Is 661,101 a Prime Number?
A: No, 661,101 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 661101 can be evenly divided by 1 3 7 21 31,481 94,443 220,367 and 661,101, with no remainder.
Since 661,101 cannot be divided by just 1 and 661,101, it is not a prime number.