Q: Is 216,138 a Prime Number?
A: No, 216,138 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 216138 can be evenly divided by 1 2 3 6 13 17 26 34 39 51 78 102 163 221 326 442 489 663 978 1,326 2,119 2,771 4,238 5,542 6,357 8,313 12,714 16,626 36,023 72,046 108,069 and 216,138, with no remainder.
Since 216,138 cannot be divided by just 1 and 216,138, it is not a prime number.