Q: Is 516,216 a Prime Number?
A: No, 516,216 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 516216 can be evenly divided by 1 2 3 4 6 8 12 24 137 157 274 314 411 471 548 628 822 942 1,096 1,256 1,644 1,884 3,288 3,768 21,509 43,018 64,527 86,036 129,054 172,072 258,108 and 516,216, with no remainder.
Since 516,216 cannot be divided by just 1 and 516,216, it is not a prime number.