Q: Is 1,557,080 a Composite Number?

Why is 1,557,080 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 1,557,080 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 67 70 83 134 140 166 268 280 332 335 415 469 536 581 664 670 830 938 1,162 1,340 1,660 1,876 2,324 2,345 2,680 2,905 3,320 3,752 4,648 4,690 5,561 5,810 9,380 11,122 11,620 18,760 22,244 23,240 27,805 38,927 44,488 55,610 77,854 111,220 155,708 194,635 222,440 311,416 389,270 778,540 and 1,557,080, with no remainder.

Since 1,557,080 cannot be divided by just 1 and 1,557,080, 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).