Q: Is 531,216 a Prime Number?
A: No, 531,216 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 531216 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 28 31 34 36 42 48 51 56 62 63 68 72 84 93 102 112 119 124 126 136 144 153 168 186 204 217 238 248 252 272 279 306 336 357 372 408 434 476 496 504 527 558 612 651 714 744 816 868 952 1,008 1,054 1,071 1,116 1,224 1,302 1,428 1,488 1,581 1,736 1,904 1,953 2,108 2,142 2,232 2,448 2,604 2,856 3,162 3,472 3,689 3,906 4,216 4,284 4,464 4,743 5,208 5,712 6,324 7,378 7,812 8,432 8,568 9,486 10,416 11,067 12,648 14,756 15,624 17,136 18,972 22,134 25,296 29,512 31,248 33,201 37,944 44,268 59,024 66,402 75,888 88,536 132,804 177,072 265,608 and 531,216, with no remainder.
Since 531,216 cannot be divided by just 1 and 531,216, it is not a prime number.