Q: Is 21,167,700 a Composite Number?

Why is 21,167,700 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 21,167,700 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 25 30 37 50 60 74 75 100 111 148 150 185 222 300 370 444 555 740 925 1,110 1,850 1,907 2,220 2,775 3,700 3,814 5,550 5,721 7,628 9,535 11,100 11,442 19,070 22,884 28,605 38,140 47,675 57,210 70,559 95,350 114,420 141,118 143,025 190,700 211,677 282,236 286,050 352,795 423,354 572,100 705,590 846,708 1,058,385 1,411,180 1,763,975 2,116,770 3,527,950 4,233,540 5,291,925 7,055,900 10,583,850 and 21,167,700, with no remainder.

Since 21,167,700 cannot be divided by just 1 and 21,167,700, 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).