Q: Is 1,235,780 a Composite Number?

Why is 1,235,780 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 1,235,780 can be evenly divided by 1 2 4 5 7 10 13 14 20 26 28 35 49 52 65 70 91 97 98 130 140 182 194 196 245 260 364 388 455 485 490 637 679 910 970 980 1,261 1,274 1,358 1,820 1,940 2,522 2,548 2,716 3,185 3,395 4,753 5,044 6,305 6,370 6,790 8,827 9,506 12,610 12,740 13,580 17,654 19,012 23,765 25,220 35,308 44,135 47,530 61,789 88,270 95,060 123,578 176,540 247,156 308,945 617,890 and 1,235,780, with no remainder.

Since 1,235,780 cannot be divided by just 1 and 1,235,780, 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).