Q: Is 209,712 a Prime Number?
A: No, 209,712 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 209712 can be evenly divided by 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 257 272 408 514 771 816 1,028 1,542 2,056 3,084 4,112 4,369 6,168 8,738 12,336 13,107 17,476 26,214 34,952 52,428 69,904 104,856 and 209,712, with no remainder.
Since 209,712 cannot be divided by just 1 and 209,712, it is not a prime number.