Q: Is 1,380,400 a Composite Number?

Why is 1,380,400 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 1,380,400 can be evenly divided by 1 2 4 5 7 8 10 14 16 17 20 25 28 29 34 35 40 50 56 58 68 70 80 85 100 112 116 119 136 140 145 170 175 200 203 232 238 272 280 290 340 350 400 406 425 464 476 493 560 580 595 680 700 725 812 850 952 986 1,015 1,160 1,190 1,360 1,400 1,450 1,624 1,700 1,904 1,972 2,030 2,320 2,380 2,465 2,800 2,900 2,975 3,248 3,400 3,451 3,944 4,060 4,760 4,930 5,075 5,800 5,950 6,800 6,902 7,888 8,120 9,520 9,860 10,150 11,600 11,900 12,325 13,804 16,240 17,255 19,720 20,300 23,800 24,650 27,608 34,510 39,440 40,600 47,600 49,300 55,216 69,020 81,200 86,275 98,600 138,040 172,550 197,200 276,080 345,100 690,200 and 1,380,400, with no remainder.

Since 1,380,400 cannot be divided by just 1 and 1,380,400, 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).