Q: Is 309,672 a Composite Number?

Why is 309,672 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 309,672 can be evenly divided by 1 2 3 4 6 8 9 11 12 17 18 22 23 24 33 34 36 44 46 51 66 68 69 72 88 92 99 102 132 136 138 153 184 187 198 204 207 253 264 276 306 374 391 396 408 414 506 552 561 612 748 759 782 792 828 1,012 1,122 1,173 1,224 1,496 1,518 1,564 1,656 1,683 2,024 2,244 2,277 2,346 3,036 3,128 3,366 3,519 4,301 4,488 4,554 4,692 6,072 6,732 7,038 8,602 9,108 9,384 12,903 13,464 14,076 17,204 18,216 25,806 28,152 34,408 38,709 51,612 77,418 103,224 154,836 and 309,672, with no remainder.

Since 309,672 cannot be divided by just 1 and 309,672, 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).