A:
Positive:
1 x 72712855 x 14542577 x 103875535 x 207751103 x 70595515 x 14119721 x 100852017 x 3605
Negative:
-1 x -7271285-5 x -1454257-7 x -1038755-35 x -207751-103 x -70595-515 x -14119-721 x -10085-2017 x -3605
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 7,271,285, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 7,271,285 | |
| -1 | -7,271,285 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,271,285.
Example:
1 x 7,271,285 = 7,271,285
and
-1 x -7,271,285 = 7,271,285
Notice both answers equal 7,271,285
With that explanation out of the way, let's continue. Next, we take the number 7,271,285 and divide it by 2:
7,271,285 ÷ 2 = 3,635,642.5
If the quotient is a whole number, then 2 and 3,635,642.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 7,271,285 | |
| -1 | -7,271,285 |
Now, we try dividing 7,271,285 by 3:
7,271,285 ÷ 3 = 2,423,761.6667
If the quotient is a whole number, then 3 and 2,423,761.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 7,271,285 | |
| -1 | -7,271,285 |
Let's try dividing by 4:
7,271,285 ÷ 4 = 1,817,821.25
If the quotient is a whole number, then 4 and 1,817,821.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 7,271,285 | |
| -1 | 7,271,285 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 103 | 515 | 721 | 2,017 | 3,605 | 10,085 | 14,119 | 70,595 | 207,751 | 1,038,755 | 1,454,257 | 7,271,285 |
| -1 | -5 | -7 | -35 | -103 | -515 | -721 | -2,017 | -3,605 | -10,085 | -14,119 | -70,595 | -207,751 | -1,038,755 | -1,454,257 | -7,271,285 |
Here are some more numbers to try:
Try the factor calculator