Q: Is 684,684 a Composite Number?

Why is 684,684 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 684,684 can be evenly divided by 1 2 3 4 6 7 9 11 12 13 14 18 19 21 22 26 28 33 36 38 39 42 44 52 57 63 66 76 77 78 84 91 99 114 117 126 132 133 143 154 156 171 182 198 209 228 231 234 247 252 266 273 286 308 342 364 396 399 418 429 462 468 494 532 546 572 627 684 693 741 798 819 836 858 924 988 1,001 1,092 1,197 1,254 1,287 1,386 1,463 1,482 1,596 1,638 1,716 1,729 1,881 2,002 2,223 2,394 2,508 2,574 2,717 2,772 2,926 2,964 3,003 3,276 3,458 3,762 4,004 4,389 4,446 4,788 5,148 5,187 5,434 5,852 6,006 6,916 7,524 8,151 8,778 8,892 9,009 10,374 10,868 12,012 13,167 15,561 16,302 17,556 18,018 19,019 20,748 24,453 26,334 31,122 32,604 36,036 38,038 48,906 52,668 57,057 62,244 76,076 97,812 114,114 171,171 228,228 342,342 and 684,684, with no remainder.

Since 684,684 cannot be divided by just 1 and 684,684, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).