Q: Is 1,378,440 a Composite Number?

Why is 1,378,440 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 1,378,440 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 56 60 63 70 72 84 90 105 120 126 140 168 180 210 252 280 315 360 420 504 547 630 840 1,094 1,260 1,641 2,188 2,520 2,735 3,282 3,829 4,376 4,923 5,470 6,564 7,658 8,205 9,846 10,940 11,487 13,128 15,316 16,410 19,145 19,692 21,880 22,974 24,615 30,632 32,820 34,461 38,290 39,384 45,948 49,230 57,435 65,640 68,922 76,580 91,896 98,460 114,870 137,844 153,160 172,305 196,920 229,740 275,688 344,610 459,480 689,220 and 1,378,440, with no remainder.

Since 1,378,440 cannot be divided by just 1 and 1,378,440, 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).