Q: Is 726,624 a Prime Number?
A: No, 726,624 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 726624 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 27 29 32 36 48 54 58 72 87 96 108 116 144 174 216 232 261 288 348 432 464 522 696 783 841 864 928 1,044 1,392 1,566 1,682 2,088 2,523 2,784 3,132 3,364 4,176 5,046 6,264 6,728 7,569 8,352 10,092 12,528 13,456 15,138 20,184 22,707 25,056 26,912 30,276 40,368 45,414 60,552 80,736 90,828 121,104 181,656 242,208 363,312 and 726,624, with no remainder.
Since 726,624 cannot be divided by just 1 and 726,624, it is not a prime number.