Q: Is 7,851,760 a Composite Number?

Why is 7,851,760 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 7,851,760 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1,960 2,003 3,920 4,006 8,012 10,015 14,021 16,024 20,030 28,042 32,048 40,060 56,084 70,105 80,120 98,147 112,168 140,210 160,240 196,294 224,336 280,420 392,588 490,735 560,840 785,176 981,470 1,121,680 1,570,352 1,962,940 3,925,880 and 7,851,760, with no remainder.

Since 7,851,760 cannot be divided by just 1 and 7,851,760, 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).