Q: Is 422,688 a Prime Number?
A: No, 422,688 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 422688 can be evenly divided by 1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 37 42 48 51 56 68 74 84 96 102 111 112 119 136 148 168 204 222 224 238 259 272 296 336 357 408 444 476 518 544 592 629 672 714 777 816 888 952 1,036 1,184 1,258 1,428 1,554 1,632 1,776 1,887 1,904 2,072 2,516 2,856 3,108 3,552 3,774 3,808 4,144 4,403 5,032 5,712 6,216 7,548 8,288 8,806 10,064 11,424 12,432 13,209 15,096 17,612 20,128 24,864 26,418 30,192 35,224 52,836 60,384 70,448 105,672 140,896 211,344 and 422,688, with no remainder.
Since 422,688 cannot be divided by just 1 and 422,688, it is not a prime number.