Q: Is 1,997,940 a Composite Number?

Why is 1,997,940 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 1,997,940 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 67 70 71 84 105 134 140 142 201 210 213 268 284 335 355 402 420 426 469 497 670 710 804 852 938 994 1,005 1,065 1,340 1,407 1,420 1,491 1,876 1,988 2,010 2,130 2,345 2,485 2,814 2,982 4,020 4,260 4,690 4,757 4,970 5,628 5,964 7,035 7,455 9,380 9,514 9,940 14,070 14,271 14,910 19,028 23,785 28,140 28,542 29,820 33,299 47,570 57,084 66,598 71,355 95,140 99,897 133,196 142,710 166,495 199,794 285,420 332,990 399,588 499,485 665,980 998,970 and 1,997,940, with no remainder.

Since 1,997,940 cannot be divided by just 1 and 1,997,940, 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).