Q: Is 551,616 a Prime Number?
A: No, 551,616 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 551616 can be evenly divided by 1 2 3 4 6 8 12 13 16 17 24 26 32 34 39 48 51 52 64 68 78 96 102 104 136 156 169 192 204 208 221 272 312 338 408 416 442 507 544 624 663 676 816 832 884 1,014 1,088 1,248 1,326 1,352 1,632 1,768 2,028 2,496 2,652 2,704 2,873 3,264 3,536 4,056 5,304 5,408 5,746 7,072 8,112 8,619 10,608 10,816 11,492 14,144 16,224 17,238 21,216 22,984 32,448 34,476 42,432 45,968 68,952 91,936 137,904 183,872 275,808 and 551,616, with no remainder.
Since 551,616 cannot be divided by just 1 and 551,616, it is not a prime number.