Q: Is 3,578,840 a Composite Number?

Why is 3,578,840 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 3,578,840 can be evenly divided by 1 2 4 5 8 10 17 19 20 34 38 40 68 76 85 95 136 152 170 190 277 323 340 380 554 646 680 760 1,108 1,292 1,385 1,615 2,216 2,584 2,770 3,230 4,709 5,263 5,540 6,460 9,418 10,526 11,080 12,920 18,836 21,052 23,545 26,315 37,672 42,104 47,090 52,630 89,471 94,180 105,260 178,942 188,360 210,520 357,884 447,355 715,768 894,710 1,789,420 and 3,578,840, with no remainder.

Since 3,578,840 cannot be divided by just 1 and 3,578,840, 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).