Q: Is 661,612 a Prime Number?
A: No, 661,612 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 661612 can be evenly divided by 1 2 4 7 14 28 23,629 47,258 94,516 165,403 330,806 and 661,612, with no remainder.
Since 661,612 cannot be divided by just 1 and 661,612, it is not a prime number.