Q: Is 1,600,040 a Composite Number?

Why is 1,600,040 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 1,600,040 can be evenly divided by 1 2 4 5 8 10 13 17 20 26 34 40 52 65 68 85 104 130 136 170 181 221 260 340 362 442 520 680 724 884 905 1,105 1,448 1,768 1,810 2,210 2,353 3,077 3,620 4,420 4,706 6,154 7,240 8,840 9,412 11,765 12,308 15,385 18,824 23,530 24,616 30,770 40,001 47,060 61,540 80,002 94,120 123,080 160,004 200,005 320,008 400,010 800,020 and 1,600,040, with no remainder.

Since 1,600,040 cannot be divided by just 1 and 1,600,040, 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).