Q: Is 31,130,440 a Composite Number?

Why is 31,130,440 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 31,130,440 can be evenly divided by 1 2 4 5 8 10 11 20 22 40 44 55 88 110 139 220 278 440 509 556 695 1,018 1,112 1,390 1,529 2,036 2,545 2,780 3,058 4,072 5,090 5,560 5,599 6,116 7,645 10,180 11,198 12,232 15,290 20,360 22,396 27,995 30,580 44,792 55,990 61,160 70,751 111,980 141,502 223,960 283,004 353,755 566,008 707,510 778,261 1,415,020 1,556,522 2,830,040 3,113,044 3,891,305 6,226,088 7,782,610 15,565,220 and 31,130,440, with no remainder.

Since 31,130,440 cannot be divided by just 1 and 31,130,440, 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).