Q: Is 21,018 a Composite Number?
A: Yes, 21,018 is a composite number.
The number 21,018 can be evenly divided by 1 2 3 6 31 62 93 113 186 226 339 678 3,503 7,006 10,509 and 21,018, with no remainder.
Since 21,018 cannot be divided by just 1 and 21,018, it is a composite number.