Q: Is 165,278,680 a Composite Number?

Why is 165,278,680 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 165,278,680 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 223 280 446 892 1,115 1,561 1,784 2,230 2,647 3,122 4,460 5,294 6,244 7,805 8,920 10,588 12,488 13,235 15,610 18,529 21,176 26,470 31,220 37,058 52,940 62,440 74,116 92,645 105,880 148,232 185,290 370,580 590,281 741,160 1,180,562 2,361,124 2,951,405 4,131,967 4,722,248 5,902,810 8,263,934 11,805,620 16,527,868 20,659,835 23,611,240 33,055,736 41,319,670 82,639,340 and 165,278,680, with no remainder.

Since 165,278,680 cannot be divided by just 1 and 165,278,680, 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).