Q: Is 1,391,000 a Composite Number?

Why is 1,391,000 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 1,391,000 can be evenly divided by 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 107 125 130 200 214 250 260 325 428 500 520 535 650 856 1,000 1,070 1,300 1,391 1,625 2,140 2,600 2,675 2,782 3,250 4,280 5,350 5,564 6,500 6,955 10,700 11,128 13,000 13,375 13,910 21,400 26,750 27,820 34,775 53,500 55,640 69,550 107,000 139,100 173,875 278,200 347,750 695,500 and 1,391,000, with no remainder.

Since 1,391,000 cannot be divided by just 1 and 1,391,000, 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).