Q: Is 2,921,380 a Composite Number?

Why is 2,921,380 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 2,921,380 can be evenly divided by 1 2 4 5 7 10 11 14 20 22 28 35 44 49 55 70 77 98 110 140 154 196 220 245 271 308 385 490 539 542 770 980 1,078 1,084 1,355 1,540 1,897 2,156 2,695 2,710 2,981 3,794 5,390 5,420 5,962 7,588 9,485 10,780 11,924 13,279 14,905 18,970 20,867 26,558 29,810 37,940 41,734 53,116 59,620 66,395 83,468 104,335 132,790 146,069 208,670 265,580 292,138 417,340 584,276 730,345 1,460,690 and 2,921,380, with no remainder.

Since 2,921,380 cannot be divided by just 1 and 2,921,380, 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).