Q: Is 18,018 a Composite Number?
A: Yes, 18,018 is a composite number.
The number 18,018 can be evenly divided by 1 2 3 6 7 9 11 13 14 18 21 22 26 33 39 42 63 66 77 78 91 99 117 126 143 154 182 198 231 234 273 286 429 462 546 693 819 858 1,001 1,287 1,386 1,638 2,002 2,574 3,003 6,006 9,009 and 18,018, with no remainder.
Since 18,018 cannot be divided by just 1 and 18,018, it is a composite number.