Q: Is 55,386,780 a Composite Number?

Why is 55,386,780 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 55,386,780 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 37 60 61 74 111 122 148 183 185 222 244 305 366 370 409 444 555 610 732 740 818 915 1,110 1,220 1,227 1,636 1,830 2,045 2,220 2,257 2,454 3,660 4,090 4,514 4,908 6,135 6,771 8,180 9,028 11,285 12,270 13,542 15,133 22,570 24,540 24,949 27,084 30,266 33,855 45,140 45,399 49,898 60,532 67,710 74,847 75,665 90,798 99,796 124,745 135,420 149,694 151,330 181,596 226,995 249,490 299,388 302,660 374,235 453,990 498,980 748,470 907,980 923,113 1,496,940 1,846,226 2,769,339 3,692,452 4,615,565 5,538,678 9,231,130 11,077,356 13,846,695 18,462,260 27,693,390 and 55,386,780, with no remainder.

Since 55,386,780 cannot be divided by just 1 and 55,386,780, 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).