Q: Is 1,776,420 a Composite Number?

Why is 1,776,420 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 1,776,420 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 71 90 139 142 180 213 278 284 355 417 426 556 639 695 710 834 852 1,065 1,251 1,278 1,390 1,420 1,668 2,085 2,130 2,502 2,556 2,780 3,195 4,170 4,260 5,004 6,255 6,390 8,340 9,869 12,510 12,780 19,738 25,020 29,607 39,476 49,345 59,214 88,821 98,690 118,428 148,035 177,642 197,380 296,070 355,284 444,105 592,140 888,210 and 1,776,420, with no remainder.

Since 1,776,420 cannot be divided by just 1 and 1,776,420, 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).