Q: Is 121,661 a Prime Number?
A: Yes, 121,661 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 121661 can be evenly divided by 1 and 121,661, with no remainder.
Since 121,661 can be divided by just 1 and 121,661, it is a prime number.