Q: Is 15,123,456 a Composite Number?

Why is 15,123,456 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 15,123,456 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 512 547 576 768 864 1,024 1,094 1,152 1,536 1,641 1,728 2,188 2,304 3,072 3,282 3,456 4,376 4,608 4,923 6,564 6,912 8,752 9,216 9,846 13,128 13,824 14,769 17,504 19,692 26,256 27,648 29,538 35,008 39,384 52,512 59,076 70,016 78,768 105,024 118,152 140,032 157,536 210,048 236,304 280,064 315,072 420,096 472,608 560,128 630,144 840,192 945,216 1,260,288 1,680,384 1,890,432 2,520,576 3,780,864 5,041,152 7,561,728 and 15,123,456, with no remainder.

Since 15,123,456 cannot be divided by just 1 and 15,123,456, 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).