Q: Is 7,999,728 a Prime Number?
A: No, 7,999,728 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 7999728 can be evenly divided by 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 109 132 139 176 218 264 278 327 417 436 528 556 654 834 872 1,112 1,199 1,308 1,529 1,668 1,744 2,224 2,398 2,616 3,058 3,336 3,597 4,587 4,796 5,232 6,116 6,672 7,194 9,174 9,592 12,232 14,388 15,151 18,348 19,184 24,464 28,776 30,302 36,696 45,453 57,552 60,604 73,392 90,906 121,208 166,661 181,812 242,416 333,322 363,624 499,983 666,644 727,248 999,966 1,333,288 1,999,932 2,666,576 3,999,864 and 7,999,728, with no remainder.
Since 7,999,728 cannot be divided by just 1 and 7,999,728, it is not a prime number.