Q: Is 2,445,135 a Composite Number?

Why is 2,445,135 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 2,445,135 can be evenly divided by 1 3 5 7 11 15 21 29 33 35 55 73 77 87 105 145 165 203 219 231 319 365 385 435 511 609 803 957 1,015 1,095 1,155 1,533 1,595 2,117 2,233 2,409 2,555 3,045 4,015 4,785 5,621 6,351 6,699 7,665 10,585 11,165 12,045 14,819 16,863 23,287 28,105 31,755 33,495 44,457 69,861 74,095 84,315 116,435 163,009 222,285 349,305 489,027 815,045 and 2,445,135, with no remainder.

Since 2,445,135 cannot be divided by just 1 and 2,445,135, 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).