Q: Is 1,216,512 a Prime Number?
A: No, 1,216,512 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 1216512 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 64 66 72 88 96 99 108 128 132 144 176 192 198 216 256 264 288 297 352 384 396 432 512 528 576 594 704 768 792 864 1,024 1,056 1,152 1,188 1,408 1,536 1,584 1,728 2,048 2,112 2,304 2,376 2,816 3,072 3,168 3,456 4,096 4,224 4,608 4,752 5,632 6,144 6,336 6,912 8,448 9,216 9,504 11,264 12,288 12,672 13,824 16,896 18,432 19,008 22,528 25,344 27,648 33,792 36,864 38,016 45,056 50,688 55,296 67,584 76,032 101,376 110,592 135,168 152,064 202,752 304,128 405,504 608,256 and 1,216,512, with no remainder.
Since 1,216,512 cannot be divided by just 1 and 1,216,512, it is not a prime number.