Q: Is 231,512,320 a Composite Number?

Why is 231,512,320 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 231,512,320 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 520 640 832 1,040 1,280 1,664 2,080 3,328 4,160 8,320 13,913 16,640 27,826 55,652 69,565 111,304 139,130 180,869 222,608 278,260 361,738 445,216 556,520 723,476 890,432 904,345 1,113,040 1,446,952 1,780,864 1,808,690 2,226,080 2,893,904 3,561,728 3,617,380 4,452,160 5,787,808 7,234,760 8,904,320 11,575,616 14,469,520 17,808,640 23,151,232 28,939,040 46,302,464 57,878,080 115,756,160 and 231,512,320, with no remainder.

Since 231,512,320 cannot be divided by just 1 and 231,512,320, 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).