A:
Positive:
1 x 71037855 x 142075713 x 54644565 x 109289293 x 24245373 x 190451465 x 48491865 x 3809
Negative:
-1 x -7103785-5 x -1420757-13 x -546445-65 x -109289-293 x -24245-373 x -19045-1465 x -4849-1865 x -3809
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 7,103,785, 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 | 7,103,785 | |
| -1 | -7,103,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,103,785.
Example:
1 x 7,103,785 = 7,103,785
and
-1 x -7,103,785 = 7,103,785
Notice both answers equal 7,103,785
With that explanation out of the way, let's continue. Next, we take the number 7,103,785 and divide it by 2:
7,103,785 ÷ 2 = 3,551,892.5
If the quotient is a whole number, then 2 and 3,551,892.5 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 | 7,103,785 | |
| -1 | -7,103,785 |
Now, we try dividing 7,103,785 by 3:
7,103,785 ÷ 3 = 2,367,928.3333
If the quotient is a whole number, then 3 and 2,367,928.3333 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 | 7,103,785 | |
| -1 | -7,103,785 |
Let's try dividing by 4:
7,103,785 ÷ 4 = 1,775,946.25
If the quotient is a whole number, then 4 and 1,775,946.25 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 | 7,103,785 | |
| -1 | 7,103,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 293 | 373 | 1,465 | 1,865 | 3,809 | 4,849 | 19,045 | 24,245 | 109,289 | 546,445 | 1,420,757 | 7,103,785 |
| -1 | -5 | -13 | -65 | -293 | -373 | -1,465 | -1,865 | -3,809 | -4,849 | -19,045 | -24,245 | -109,289 | -546,445 | -1,420,757 | -7,103,785 |
Here are some more numbers to try:
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