Q: Is 378,560 a Composite Number?

Why is 378,560 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 378,560 can be evenly divided by 1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 64 65 70 80 91 104 112 130 140 160 169 182 208 224 260 280 320 338 364 416 448 455 520 560 676 728 832 845 910 1,040 1,120 1,183 1,352 1,456 1,690 1,820 2,080 2,240 2,366 2,704 2,912 3,380 3,640 4,160 4,732 5,408 5,824 5,915 6,760 7,280 9,464 10,816 11,830 13,520 14,560 18,928 23,660 27,040 29,120 37,856 47,320 54,080 75,712 94,640 189,280 and 378,560, with no remainder.

Since 378,560 cannot be divided by just 1 and 378,560, 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).