Q: Is 396,396 a Prime Number?
A: No, 396,396 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 396396 can be evenly divided by 1 2 3 4 6 7 9 11 12 13 14 18 21 22 26 28 33 36 39 42 44 52 63 66 77 78 84 91 99 117 121 126 132 143 154 156 182 198 231 234 242 252 273 286 308 363 364 396 429 462 468 484 546 572 693 726 819 847 858 924 1,001 1,089 1,092 1,287 1,386 1,452 1,573 1,638 1,694 1,716 2,002 2,178 2,541 2,574 2,772 3,003 3,146 3,276 3,388 4,004 4,356 4,719 5,082 5,148 6,006 6,292 7,623 9,009 9,438 10,164 11,011 12,012 14,157 15,246 18,018 18,876 22,022 28,314 30,492 33,033 36,036 44,044 56,628 66,066 99,099 132,132 198,198 and 396,396, with no remainder.
Since 396,396 cannot be divided by just 1 and 396,396, it is not a prime number.