Q: Is 1,580,640 a Composite Number?

Why is 1,580,640 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 1,580,640 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 37 40 48 60 74 80 89 96 111 120 148 160 178 185 222 240 267 296 356 370 444 445 480 534 555 592 712 740 888 890 1,068 1,110 1,184 1,335 1,424 1,480 1,776 1,780 2,136 2,220 2,670 2,848 2,960 3,293 3,552 3,560 4,272 4,440 5,340 5,920 6,586 7,120 8,544 8,880 9,879 10,680 13,172 14,240 16,465 17,760 19,758 21,360 26,344 32,930 39,516 42,720 49,395 52,688 65,860 79,032 98,790 105,376 131,720 158,064 197,580 263,440 316,128 395,160 526,880 790,320 and 1,580,640, with no remainder.

Since 1,580,640 cannot be divided by just 1 and 1,580,640, 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).