Q: Is 239,904 a Prime Number?
A: No, 239,904 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 239904 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 28 32 34 36 42 48 49 51 56 63 68 72 84 96 98 102 112 119 126 136 144 147 153 168 196 204 224 238 252 272 288 294 306 336 357 392 408 441 476 504 544 588 612 672 714 784 816 833 882 952 1,008 1,071 1,176 1,224 1,428 1,568 1,632 1,666 1,764 1,904 2,016 2,142 2,352 2,448 2,499 2,856 3,332 3,528 3,808 4,284 4,704 4,896 4,998 5,712 6,664 7,056 7,497 8,568 9,996 11,424 13,328 14,112 14,994 17,136 19,992 26,656 29,988 34,272 39,984 59,976 79,968 119,952 and 239,904, with no remainder.
Since 239,904 cannot be divided by just 1 and 239,904, it is not a prime number.