Q: Is 858,240 a Composite Number?

Why is 858,240 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 858,240 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 149 160 180 192 240 288 298 320 360 384 447 480 576 596 640 720 745 894 960 1,152 1,192 1,341 1,440 1,490 1,788 1,920 2,235 2,384 2,682 2,880 2,980 3,576 4,470 4,768 5,364 5,760 5,960 6,705 7,152 8,940 9,536 10,728 11,920 13,410 14,304 17,880 19,072 21,456 23,840 26,820 28,608 35,760 42,912 47,680 53,640 57,216 71,520 85,824 95,360 107,280 143,040 171,648 214,560 286,080 429,120 and 858,240, with no remainder.

Since 858,240 cannot be divided by just 1 and 858,240, 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).