A:
Positive:
1 x 130127355 x 260254717 x 76545529 x 44871585 x 153091145 x 89743493 x 263952465 x 5279
Negative:
-1 x -13012735-5 x -2602547-17 x -765455-29 x -448715-85 x -153091-145 x -89743-493 x -26395-2465 x -5279
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 13,012,735, 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 | 13,012,735 | |
| -1 | -13,012,735 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,012,735.
Example:
1 x 13,012,735 = 13,012,735
and
-1 x -13,012,735 = 13,012,735
Notice both answers equal 13,012,735
With that explanation out of the way, let's continue. Next, we take the number 13,012,735 and divide it by 2:
13,012,735 ÷ 2 = 6,506,367.5
If the quotient is a whole number, then 2 and 6,506,367.5 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 | 13,012,735 | |
| -1 | -13,012,735 |
Now, we try dividing 13,012,735 by 3:
13,012,735 ÷ 3 = 4,337,578.3333
If the quotient is a whole number, then 3 and 4,337,578.3333 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 | 13,012,735 | |
| -1 | -13,012,735 |
Let's try dividing by 4:
13,012,735 ÷ 4 = 3,253,183.75
If the quotient is a whole number, then 4 and 3,253,183.75 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 | 13,012,735 | |
| -1 | 13,012,735 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 29 | 85 | 145 | 493 | 2,465 | 5,279 | 26,395 | 89,743 | 153,091 | 448,715 | 765,455 | 2,602,547 | 13,012,735 |
| -1 | -5 | -17 | -29 | -85 | -145 | -493 | -2,465 | -5,279 | -26,395 | -89,743 | -153,091 | -448,715 | -765,455 | -2,602,547 | -13,012,735 |
Here are some more numbers to try:
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