Q: Is 647,360 a Composite Number?

Why is 647,360 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 647,360 can be evenly divided by 1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 56 64 68 70 80 85 112 119 136 140 160 170 224 238 272 280 289 320 340 448 476 544 560 578 595 680 952 1,088 1,120 1,156 1,190 1,360 1,445 1,904 2,023 2,240 2,312 2,380 2,720 2,890 3,808 4,046 4,624 4,760 5,440 5,780 7,616 8,092 9,248 9,520 10,115 11,560 16,184 18,496 19,040 20,230 23,120 32,368 38,080 40,460 46,240 64,736 80,920 92,480 129,472 161,840 323,680 and 647,360, with no remainder.

Since 647,360 cannot be divided by just 1 and 647,360, 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).