Q: Is 1,387,500 a Composite Number?

Why is 1,387,500 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 1,387,500 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 25 30 37 50 60 74 75 100 111 125 148 150 185 222 250 300 370 375 444 500 555 625 740 750 925 1,110 1,250 1,500 1,850 1,875 2,220 2,500 2,775 3,125 3,700 3,750 4,625 5,550 6,250 7,500 9,250 9,375 11,100 12,500 13,875 18,500 18,750 23,125 27,750 37,500 46,250 55,500 69,375 92,500 115,625 138,750 231,250 277,500 346,875 462,500 693,750 and 1,387,500, with no remainder.

Since 1,387,500 cannot be divided by just 1 and 1,387,500, 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).