Q: Is 1,511,560 a Composite Number?

Why is 1,511,560 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 1,511,560 can be evenly divided by 1 2 4 5 8 10 20 23 31 40 46 53 62 92 106 115 124 155 184 212 230 248 265 310 424 460 530 620 713 920 1,060 1,219 1,240 1,426 1,643 2,120 2,438 2,852 3,286 3,565 4,876 5,704 6,095 6,572 7,130 8,215 9,752 12,190 13,144 14,260 16,430 24,380 28,520 32,860 37,789 48,760 65,720 75,578 151,156 188,945 302,312 377,890 755,780 and 1,511,560, with no remainder.

Since 1,511,560 cannot be divided by just 1 and 1,511,560, 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).