Q: Is 997,661 a Prime Number?
A: No, 997,661 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 997661 can be evenly divided by 1 7 359 397 2,513 2,779 142,523 and 997,661, with no remainder.
Since 997,661 cannot be divided by just 1 and 997,661, it is not a prime number.