Q: Is 6,616,428 a Prime Number?
A: No, 6,616,428 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 6616428 can be evenly divided by 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 73 78 83 84 91 146 156 166 182 219 249 273 292 332 364 438 498 511 546 581 876 949 996 1,022 1,079 1,092 1,162 1,533 1,743 1,898 2,044 2,158 2,324 2,847 3,066 3,237 3,486 3,796 4,316 5,694 6,059 6,132 6,474 6,643 6,972 7,553 11,388 12,118 12,948 13,286 15,106 18,177 19,929 22,659 24,236 26,572 30,212 36,354 39,858 42,413 45,318 72,708 78,767 79,716 84,826 90,636 127,239 157,534 169,652 236,301 254,478 315,068 472,602 508,956 551,369 945,204 1,102,738 1,654,107 2,205,476 3,308,214 and 6,616,428, with no remainder.
Since 6,616,428 cannot be divided by just 1 and 6,616,428, it is not a prime number.