Q: Is 42,664 a Prime Number?
A: No, 42,664 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 42664 can be evenly divided by 1 2 4 8 5,333 10,666 21,332 and 42,664, with no remainder.
Since 42,664 cannot be divided by just 1 and 42,664, it is not a prime number.