Q: Is 661,122 a Composite Number?

Why is 661,122 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 661,122 can be evenly divided by 1 2 3 6 7 9 11 14 18 21 22 27 33 42 53 54 63 66 77 81 99 106 126 154 159 162 189 198 231 297 318 371 378 462 477 567 583 594 693 742 891 954 1,113 1,134 1,166 1,386 1,431 1,749 1,782 2,079 2,226 2,862 3,339 3,498 4,081 4,158 4,293 5,247 6,237 6,678 8,162 8,586 10,017 10,494 12,243 12,474 15,741 20,034 24,486 30,051 31,482 36,729 47,223 60,102 73,458 94,446 110,187 220,374 330,561 and 661,122, with no remainder.

Since 661,122 cannot be divided by just 1 and 661,122, 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).