Q: Is 121,664 a Prime Number?
A: No, 121,664 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 121664 can be evenly divided by 1 2 4 8 16 32 64 1,901 3,802 7,604 15,208 30,416 60,832 and 121,664, with no remainder.
Since 121,664 cannot be divided by just 1 and 121,664, it is not a prime number.