Q: Is 545,220 a Composite Number?

Why is 545,220 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 545,220 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 233 234 260 390 466 468 585 699 780 932 1,165 1,170 1,398 2,097 2,330 2,340 2,796 3,029 3,495 4,194 4,660 6,058 6,990 8,388 9,087 10,485 12,116 13,980 15,145 18,174 20,970 27,261 30,290 36,348 41,940 45,435 54,522 60,580 90,870 109,044 136,305 181,740 272,610 and 545,220, with no remainder.

Since 545,220 cannot be divided by just 1 and 545,220, 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).