Q: Is 820,780,380 a Composite Number?

Why is 820,780,380 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 820,780,380 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 84 90 98 105 126 140 147 180 196 210 245 252 294 315 420 441 490 588 630 735 882 980 1,260 1,470 1,764 2,205 2,940 4,410 8,820 93,059 186,118 279,177 372,236 465,295 558,354 651,413 837,531 930,590 1,116,708 1,302,826 1,395,885 1,675,062 1,861,180 1,954,239 2,605,652 2,791,770 3,257,065 3,350,124 3,908,478 4,187,655 4,559,891 5,583,540 5,862,717 6,514,130 7,816,956 8,375,310 9,119,782 9,771,195 11,725,434 13,028,260 13,679,673 16,750,620 18,239,564 19,542,390 22,799,455 23,450,868 27,359,346 29,313,585 39,084,780 41,039,019 45,598,910 54,718,692 58,627,170 68,398,365 82,078,038 91,197,820 117,254,340 136,796,730 164,156,076 205,195,095 273,593,460 410,390,190 and 820,780,380, with no remainder.

Since 820,780,380 cannot be divided by just 1 and 820,780,380, 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).