Q: Is 1,780,480 a Composite Number?

Why is 1,780,480 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 1,780,480 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 107 128 130 160 208 214 256 260 320 416 428 520 535 640 832 856 1,040 1,070 1,280 1,391 1,664 1,712 2,080 2,140 2,782 3,328 3,424 4,160 4,280 5,564 6,848 6,955 8,320 8,560 11,128 13,696 13,910 16,640 17,120 22,256 27,392 27,820 34,240 44,512 55,640 68,480 89,024 111,280 136,960 178,048 222,560 356,096 445,120 890,240 and 1,780,480, with no remainder.

Since 1,780,480 cannot be divided by just 1 and 1,780,480, 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).