Q: Is 2,005,680 a Composite Number?

Why is 2,005,680 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 2,005,680 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 61 80 120 122 137 183 240 244 274 305 366 411 488 548 610 685 732 822 915 976 1,096 1,220 1,370 1,464 1,644 1,830 2,055 2,192 2,440 2,740 2,928 3,288 3,660 4,110 4,880 5,480 6,576 7,320 8,220 8,357 10,960 14,640 16,440 16,714 25,071 32,880 33,428 41,785 50,142 66,856 83,570 100,284 125,355 133,712 167,140 200,568 250,710 334,280 401,136 501,420 668,560 1,002,840 and 2,005,680, with no remainder.

Since 2,005,680 cannot be divided by just 1 and 2,005,680, 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).