Q: Is 121,566 a Prime Number?
A: No, 121,566 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 121566 can be evenly divided by 1 2 3 6 20,261 40,522 60,783 and 121,566, with no remainder.
Since 121,566 cannot be divided by just 1 and 121,566, it is not a prime number.