Q: Is 420,045,210 a Composite Number?

Why is 420,045,210 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 420,045,210 can be evenly divided by 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1,170 1,755 3,510 119,671 239,342 359,013 598,355 718,026 1,077,039 1,196,710 1,555,723 1,795,065 2,154,078 3,111,446 3,231,117 3,590,130 4,667,169 5,385,195 6,462,234 7,778,615 9,334,338 10,770,390 14,001,507 15,557,230 16,155,585 23,335,845 28,003,014 32,311,170 42,004,521 46,671,690 70,007,535 84,009,042 140,015,070 210,022,605 and 420,045,210, with no remainder.

Since 420,045,210 cannot be divided by just 1 and 420,045,210, 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).