Q: Is 561,150 a Composite Number?

Why is 561,150 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 561,150 can be evenly divided by 1 2 3 5 6 9 10 15 18 25 29 30 43 45 50 58 75 86 87 90 129 145 150 174 215 225 258 261 290 387 430 435 450 522 645 725 774 870 1,075 1,247 1,290 1,305 1,450 1,935 2,150 2,175 2,494 2,610 3,225 3,741 3,870 4,350 6,235 6,450 6,525 7,482 9,675 11,223 12,470 13,050 18,705 19,350 22,446 31,175 37,410 56,115 62,350 93,525 112,230 187,050 280,575 and 561,150, with no remainder.

Since 561,150 cannot be divided by just 1 and 561,150, 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).