Q: Is 2,523,780 a Composite Number?

Why is 2,523,780 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 2,523,780 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1,260 2,003 4,006 6,009 8,012 10,015 12,018 14,021 18,027 20,030 24,036 28,042 30,045 36,054 40,060 42,063 56,084 60,090 70,105 72,108 84,126 90,135 120,180 126,189 140,210 168,252 180,270 210,315 252,378 280,420 360,540 420,630 504,756 630,945 841,260 1,261,890 and 2,523,780, with no remainder.

Since 2,523,780 cannot be divided by just 1 and 2,523,780, 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).