Q: Is 3,157,320 a Composite Number?

Why is 3,157,320 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 3,157,320 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 83 120 166 249 317 332 415 498 634 664 830 951 996 1,245 1,268 1,585 1,660 1,902 1,992 2,490 2,536 3,170 3,320 3,804 4,755 4,980 6,340 7,608 9,510 9,960 12,680 19,020 26,311 38,040 52,622 78,933 105,244 131,555 157,866 210,488 263,110 315,732 394,665 526,220 631,464 789,330 1,052,440 1,578,660 and 3,157,320, with no remainder.

Since 3,157,320 cannot be divided by just 1 and 3,157,320, 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).