Q: Is 1,380,240 a Composite Number?

Why is 1,380,240 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 1,380,240 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 71 72 80 81 90 108 120 135 142 144 162 180 213 216 240 243 270 284 324 355 360 405 426 432 486 540 568 639 648 710 720 810 852 972 1,065 1,080 1,136 1,215 1,278 1,296 1,420 1,620 1,704 1,917 1,944 2,130 2,160 2,430 2,556 2,840 3,195 3,240 3,408 3,834 3,888 4,260 4,860 5,112 5,680 5,751 6,390 6,480 7,668 8,520 9,585 9,720 10,224 11,502 12,780 15,336 17,040 17,253 19,170 19,440 23,004 25,560 28,755 30,672 34,506 38,340 46,008 51,120 57,510 69,012 76,680 86,265 92,016 115,020 138,024 153,360 172,530 230,040 276,048 345,060 460,080 690,120 and 1,380,240, with no remainder.

Since 1,380,240 cannot be divided by just 1 and 1,380,240, 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).