Q: Is 3,125,220 a Composite Number?

Why is 3,125,220 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 3,125,220 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1,063 1,470 2,126 2,940 3,189 4,252 5,315 6,378 7,441 10,630 12,756 14,882 15,945 21,260 22,323 29,764 31,890 37,205 44,646 52,087 63,780 74,410 89,292 104,174 111,615 148,820 156,261 208,348 223,230 260,435 312,522 446,460 520,870 625,044 781,305 1,041,740 1,562,610 and 3,125,220, with no remainder.

Since 3,125,220 cannot be divided by just 1 and 3,125,220, 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).