Q: Is 646,000 a Composite Number?

Why is 646,000 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 646,000 can be evenly divided by 1 2 4 5 8 10 16 17 19 20 25 34 38 40 50 68 76 80 85 95 100 125 136 152 170 190 200 250 272 304 323 340 380 400 425 475 500 646 680 760 850 950 1,000 1,292 1,360 1,520 1,615 1,700 1,900 2,000 2,125 2,375 2,584 3,230 3,400 3,800 4,250 4,750 5,168 6,460 6,800 7,600 8,075 8,500 9,500 12,920 16,150 17,000 19,000 25,840 32,300 34,000 38,000 40,375 64,600 80,750 129,200 161,500 323,000 and 646,000, with no remainder.

Since 646,000 cannot be divided by just 1 and 646,000, 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).