Q: Is 331,425 a Prime Number?
A: No, 331,425 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 331425 can be evenly divided by 1 3 5 9 15 25 27 45 75 135 225 491 675 1,473 2,455 4,419 7,365 12,275 13,257 22,095 36,825 66,285 110,475 and 331,425, with no remainder.
Since 331,425 cannot be divided by just 1 and 331,425, it is not a prime number.