Q: Is 25,664 a Prime Number?
A: No, 25,664 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 25664 can be evenly divided by 1 2 4 8 16 32 64 401 802 1,604 3,208 6,416 12,832 and 25,664, with no remainder.
Since 25,664 cannot be divided by just 1 and 25,664, it is not a prime number.