Q: Is 402,661,420 a Composite Number?

Why is 402,661,420 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 402,661,420 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 49 70 79 98 140 158 196 245 316 343 395 490 553 686 743 790 980 1,106 1,372 1,486 1,580 1,715 2,212 2,765 2,972 3,430 3,715 3,871 5,201 5,530 6,860 7,430 7,742 10,402 11,060 14,860 15,484 19,355 20,804 26,005 27,097 36,407 38,710 52,010 54,194 58,697 72,814 77,420 104,020 108,388 117,394 135,485 145,628 182,035 234,788 254,849 270,970 293,485 364,070 410,879 509,698 541,940 586,970 728,140 821,758 1,019,396 1,173,940 1,274,245 1,643,516 2,054,395 2,548,490 2,876,153 4,108,790 5,096,980 5,752,306 8,217,580 11,504,612 14,380,765 20,133,071 28,761,530 40,266,142 57,523,060 80,532,284 100,665,355 201,330,710 and 402,661,420, with no remainder.

Since 402,661,420 cannot be divided by just 1 and 402,661,420, 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).