Q: Is 157,440 a Composite Number?

Why is 157,440 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 157,440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 41 48 60 64 80 82 96 120 123 128 160 164 192 205 240 246 256 320 328 384 410 480 492 615 640 656 768 820 960 984 1,230 1,280 1,312 1,640 1,920 1,968 2,460 2,624 3,280 3,840 3,936 4,920 5,248 6,560 7,872 9,840 10,496 13,120 15,744 19,680 26,240 31,488 39,360 52,480 78,720 and 157,440, with no remainder.

Since 157,440 cannot be divided by just 1 and 157,440, 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).