Q: Is 1,388,900 a Composite Number?

Why is 1,388,900 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 1,388,900 can be evenly divided by 1 2 4 5 10 17 19 20 25 34 38 43 50 68 76 85 86 95 100 170 172 190 215 323 340 380 425 430 475 646 731 817 850 860 950 1,075 1,292 1,462 1,615 1,634 1,700 1,900 2,150 2,924 3,230 3,268 3,655 4,085 4,300 6,460 7,310 8,075 8,170 13,889 14,620 16,150 16,340 18,275 20,425 27,778 32,300 36,550 40,850 55,556 69,445 73,100 81,700 138,890 277,780 347,225 694,450 and 1,388,900, with no remainder.

Since 1,388,900 cannot be divided by just 1 and 1,388,900, 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).