Q: Is 858,420 a Composite Number?

Why is 858,420 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 858,420 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 251 285 342 380 502 570 684 753 855 1,004 1,140 1,255 1,506 1,710 2,259 2,510 3,012 3,420 3,765 4,518 4,769 5,020 7,530 9,036 9,538 11,295 14,307 15,060 19,076 22,590 23,845 28,614 42,921 45,180 47,690 57,228 71,535 85,842 95,380 143,070 171,684 214,605 286,140 429,210 and 858,420, with no remainder.

Since 858,420 cannot be divided by just 1 and 858,420, 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).