Q: Is 213,428 a Prime Number?
A: No, 213,428 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 213428 can be evenly divided by 1 2 4 229 233 458 466 916 932 53,357 106,714 and 213,428, with no remainder.
Since 213,428 cannot be divided by just 1 and 213,428, it is not a prime number.