Q: Is 1,806,080 a Composite Number?

Why is 1,806,080 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 1,806,080 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 64 68 80 83 85 128 136 160 166 170 256 272 320 332 340 415 544 640 664 680 830 1,088 1,280 1,328 1,360 1,411 1,660 2,176 2,656 2,720 2,822 3,320 4,352 5,312 5,440 5,644 6,640 7,055 10,624 10,880 11,288 13,280 14,110 21,248 21,760 22,576 26,560 28,220 45,152 53,120 56,440 90,304 106,240 112,880 180,608 225,760 361,216 451,520 903,040 and 1,806,080, with no remainder.

Since 1,806,080 cannot be divided by just 1 and 1,806,080, 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).