Q: Is 25,665 a Prime Number?
A: No, 25,665 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 25665 can be evenly divided by 1 3 5 15 29 59 87 145 177 295 435 885 1,711 5,133 8,555 and 25,665, with no remainder.
Since 25,665 cannot be divided by just 1 and 25,665, it is not a prime number.