Q: Is 31,403,625 a Composite Number?

Why is 31,403,625 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 31,403,625 can be evenly divided by 1 3 5 11 15 23 25 33 55 69 75 115 125 165 253 275 331 345 375 575 759 825 993 1,265 1,375 1,655 1,725 2,875 3,641 3,795 4,125 4,965 6,325 7,613 8,275 8,625 10,923 18,205 18,975 22,839 24,825 31,625 38,065 41,375 54,615 83,743 91,025 94,875 114,195 124,125 190,325 251,229 273,075 418,715 455,125 570,975 951,625 1,256,145 1,365,375 2,093,575 2,854,875 6,280,725 10,467,875 and 31,403,625, with no remainder.

Since 31,403,625 cannot be divided by just 1 and 31,403,625, 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).