Q: Is 421,485 a Prime Number?
A: No, 421,485 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 421485 can be evenly divided by 1 3 5 15 28,099 84,297 140,495 and 421,485, with no remainder.
Since 421,485 cannot be divided by just 1 and 421,485, it is not a prime number.