Q: Is 642,000 a Composite Number?

Why is 642,000 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 642,000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 107 120 125 150 200 214 240 250 300 321 375 400 428 500 535 600 642 750 856 1,000 1,070 1,200 1,284 1,500 1,605 1,712 2,000 2,140 2,568 2,675 3,000 3,210 4,280 5,136 5,350 6,000 6,420 8,025 8,560 10,700 12,840 13,375 16,050 21,400 25,680 26,750 32,100 40,125 42,800 53,500 64,200 80,250 107,000 128,400 160,500 214,000 321,000 and 642,000, with no remainder.

Since 642,000 cannot be divided by just 1 and 642,000, 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).