Q: Is 728,028 a Prime Number?
A: No, 728,028 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 728028 can be evenly divided by 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 107 108 126 162 189 214 243 252 321 324 378 428 486 567 642 749 756 963 972 1,134 1,284 1,498 1,701 1,926 2,247 2,268 2,889 2,996 3,402 3,852 4,494 5,778 6,741 6,804 8,667 8,988 11,556 13,482 17,334 20,223 26,001 26,964 34,668 40,446 52,002 60,669 80,892 104,004 121,338 182,007 242,676 364,014 and 728,028, with no remainder.
Since 728,028 cannot be divided by just 1 and 728,028, it is not a prime number.