Q: Is 1,251,390 a Composite Number?

Why is 1,251,390 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 1,251,390 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 35 42 59 70 101 105 118 177 202 210 295 303 354 413 505 590 606 707 826 885 1,010 1,239 1,414 1,515 1,770 2,065 2,121 2,478 3,030 3,535 4,130 4,242 5,959 6,195 7,070 10,605 11,918 12,390 17,877 21,210 29,795 35,754 41,713 59,590 83,426 89,385 125,139 178,770 208,565 250,278 417,130 625,695 and 1,251,390, with no remainder.

Since 1,251,390 cannot be divided by just 1 and 1,251,390, 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).