Q: Is 649,040 a Composite Number?

Why is 649,040 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 649,040 can be evenly divided by 1 2 4 5 7 8 10 14 16 19 20 28 35 38 40 56 61 70 76 80 95 112 122 133 140 152 190 244 266 280 304 305 380 427 488 532 560 610 665 760 854 976 1,064 1,159 1,220 1,330 1,520 1,708 2,128 2,135 2,318 2,440 2,660 3,416 4,270 4,636 4,880 5,320 5,795 6,832 8,113 8,540 9,272 10,640 11,590 16,226 17,080 18,544 23,180 32,452 34,160 40,565 46,360 64,904 81,130 92,720 129,808 162,260 324,520 and 649,040, with no remainder.

Since 649,040 cannot be divided by just 1 and 649,040, 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).