Q: Is 1,378,800 a Composite Number?

Why is 1,378,800 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 1,378,800 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 144 150 180 200 225 240 300 360 383 400 450 600 720 766 900 1,149 1,200 1,532 1,800 1,915 2,298 3,064 3,447 3,600 3,830 4,596 5,745 6,128 6,894 7,660 9,192 9,575 11,490 13,788 15,320 17,235 18,384 19,150 22,980 27,576 28,725 30,640 34,470 38,300 45,960 55,152 57,450 68,940 76,600 86,175 91,920 114,900 137,880 153,200 172,350 229,800 275,760 344,700 459,600 689,400 and 1,378,800, with no remainder.

Since 1,378,800 cannot be divided by just 1 and 1,378,800, 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).