Q: Is 1,818,240 a Composite Number?

Why is 1,818,240 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 1,818,240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 947 960 1,894 1,920 2,841 3,788 4,735 5,682 7,576 9,470 11,364 14,205 15,152 18,940 22,728 28,410 30,304 37,880 45,456 56,820 60,608 75,760 90,912 113,640 121,216 151,520 181,824 227,280 303,040 363,648 454,560 606,080 909,120 and 1,818,240, with no remainder.

Since 1,818,240 cannot be divided by just 1 and 1,818,240, 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).