Q: Is 1,393,728 a Prime Number?
A: No, 1,393,728 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 1393728 can be evenly divided by 1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 42 48 51 56 61 64 68 84 96 102 112 119 122 136 168 183 192 204 224 238 244 272 336 357 366 408 427 448 476 488 544 672 714 732 816 854 952 976 1,037 1,088 1,281 1,344 1,428 1,464 1,632 1,708 1,904 1,952 2,074 2,562 2,856 2,928 3,111 3,264 3,416 3,808 3,904 4,148 5,124 5,712 5,856 6,222 6,832 7,259 7,616 8,296 10,248 11,424 11,712 12,444 13,664 14,518 16,592 20,496 21,777 22,848 24,888 27,328 29,036 33,184 40,992 43,554 49,776 58,072 66,368 81,984 87,108 99,552 116,144 174,216 199,104 232,288 348,432 464,576 696,864 and 1,393,728, with no remainder.
Since 1,393,728 cannot be divided by just 1 and 1,393,728, it is not a prime number.