Q: Is 427,215 a Prime Number?
A: No, 427,215 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 427215 can be evenly divided by 1 3 5 15 19 57 95 285 1,499 4,497 7,495 22,485 28,481 85,443 142,405 and 427,215, with no remainder.
Since 427,215 cannot be divided by just 1 and 427,215, it is not a prime number.