Q: Is 1,221,248 a Composite Number?

Why is 1,221,248 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 1,221,248 can be evenly divided by 1 2 4 7 8 14 16 28 29 32 47 56 58 64 94 112 116 128 188 203 224 232 329 376 406 448 464 658 752 812 896 928 1,316 1,363 1,504 1,624 1,856 2,632 2,726 3,008 3,248 3,712 5,264 5,452 6,016 6,496 9,541 10,528 10,904 12,992 19,082 21,056 21,808 25,984 38,164 42,112 43,616 76,328 87,232 152,656 174,464 305,312 610,624 and 1,221,248, with no remainder.

Since 1,221,248 cannot be divided by just 1 and 1,221,248, 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).