Q: Is 646,100 a Composite Number?

Why is 646,100 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 646,100 can be evenly divided by 1 2 4 5 7 10 13 14 20 25 26 28 35 50 52 65 70 71 91 100 130 140 142 175 182 260 284 325 350 355 364 455 497 650 700 710 910 923 994 1,300 1,420 1,775 1,820 1,846 1,988 2,275 2,485 3,550 3,692 4,550 4,615 4,970 6,461 7,100 9,100 9,230 9,940 12,425 12,922 18,460 23,075 24,850 25,844 32,305 46,150 49,700 64,610 92,300 129,220 161,525 323,050 and 646,100, with no remainder.

Since 646,100 cannot be divided by just 1 and 646,100, 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).