Q: Is 1,536,640 a Composite Number?

Why is 1,536,640 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 1,536,640 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 280 320 343 392 448 490 560 640 686 784 896 980 1,120 1,372 1,568 1,715 1,960 2,240 2,401 2,744 3,136 3,430 3,920 4,480 4,802 5,488 6,272 6,860 7,840 9,604 10,976 12,005 13,720 15,680 19,208 21,952 24,010 27,440 31,360 38,416 43,904 48,020 54,880 76,832 96,040 109,760 153,664 192,080 219,520 307,328 384,160 768,320 and 1,536,640, with no remainder.

Since 1,536,640 cannot be divided by just 1 and 1,536,640, 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).