Q: Is 1,380,120 a Composite Number?

Why is 1,380,120 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 1,380,120 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 31 35 40 42 53 56 60 62 70 84 93 105 106 120 124 140 155 159 168 186 210 212 217 248 265 280 310 318 371 372 420 424 434 465 530 620 636 651 742 744 795 840 868 930 1,060 1,085 1,113 1,240 1,272 1,302 1,484 1,590 1,643 1,736 1,855 1,860 2,120 2,170 2,226 2,604 2,968 3,180 3,255 3,286 3,710 3,720 4,340 4,452 4,929 5,208 5,565 6,360 6,510 6,572 7,420 8,215 8,680 8,904 9,858 11,130 11,501 13,020 13,144 14,840 16,430 19,716 22,260 23,002 24,645 26,040 32,860 34,503 39,432 44,520 46,004 49,290 57,505 65,720 69,006 92,008 98,580 115,010 138,012 172,515 197,160 230,020 276,024 345,030 460,040 690,060 and 1,380,120, with no remainder.

Since 1,380,120 cannot be divided by just 1 and 1,380,120, 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).