Q: Is 2,645,874 a Composite Number?

Why is 2,645,874 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 2,645,874 can be evenly divided by 1 2 3 6 7 9 11 14 18 21 22 23 33 42 46 63 66 69 77 83 99 126 138 154 161 166 198 207 231 249 253 322 414 462 483 498 506 581 693 747 759 913 966 1,162 1,386 1,449 1,494 1,518 1,743 1,771 1,826 1,909 2,277 2,739 2,898 3,486 3,542 3,818 4,554 5,229 5,313 5,478 5,727 6,391 8,217 10,458 10,626 11,454 12,782 13,363 15,939 16,434 17,181 19,173 20,999 26,726 31,878 34,362 38,346 40,089 41,998 57,519 62,997 80,178 115,038 120,267 125,994 146,993 188,991 240,534 293,986 377,982 440,979 881,958 1,322,937 and 2,645,874, with no remainder.

Since 2,645,874 cannot be divided by just 1 and 2,645,874, 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).