Q: Is 1,321,056 a Prime Number?
A: No, 1,321,056 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 1321056 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 66 72 88 96 99 108 132 139 144 176 198 216 264 278 288 297 352 396 417 432 528 556 594 792 834 864 1,056 1,112 1,188 1,251 1,529 1,584 1,668 2,224 2,376 2,502 3,058 3,168 3,336 3,753 4,448 4,587 4,752 5,004 6,116 6,672 7,506 9,174 9,504 10,008 12,232 13,344 13,761 15,012 18,348 20,016 24,464 27,522 30,024 36,696 40,032 41,283 48,928 55,044 60,048 73,392 82,566 110,088 120,096 146,784 165,132 220,176 330,264 440,352 660,528 and 1,321,056, with no remainder.
Since 1,321,056 cannot be divided by just 1 and 1,321,056, it is not a prime number.