Q: Is 1,891,000 a Composite Number?

Why is 1,891,000 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 1,891,000 can be evenly divided by 1 2 4 5 8 10 20 25 31 40 50 61 62 100 122 124 125 155 200 244 248 250 305 310 488 500 610 620 775 1,000 1,220 1,240 1,525 1,550 1,891 2,440 3,050 3,100 3,782 3,875 6,100 6,200 7,564 7,625 7,750 9,455 12,200 15,128 15,250 15,500 18,910 30,500 31,000 37,820 47,275 61,000 75,640 94,550 189,100 236,375 378,200 472,750 945,500 and 1,891,000, with no remainder.

Since 1,891,000 cannot be divided by just 1 and 1,891,000, 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).