Q: Is 216,435 a Prime Number?
A: No, 216,435 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 216435 can be evenly divided by 1 3 5 15 47 141 235 307 705 921 1,535 4,605 14,429 43,287 72,145 and 216,435, with no remainder.
Since 216,435 cannot be divided by just 1 and 216,435, it is not a prime number.