Q: Is 2,138,220 a Composite Number?

Why is 2,138,220 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 2,138,220 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1,260 1,697 3,394 5,091 6,788 8,485 10,182 11,879 15,273 16,970 20,364 23,758 25,455 30,546 33,940 35,637 47,516 50,910 59,395 61,092 71,274 76,365 101,820 106,911 118,790 142,548 152,730 178,185 213,822 237,580 305,460 356,370 427,644 534,555 712,740 1,069,110 and 2,138,220, with no remainder.

Since 2,138,220 cannot be divided by just 1 and 2,138,220, 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).