A:
Positive:
1 x 1266617313 x 97432117 x 74506937 x 342329221 x 57313481 x 26333629 x 201371549 x 8177
Negative:
-1 x -12666173-13 x -974321-17 x -745069-37 x -342329-221 x -57313-481 x -26333-629 x -20137-1549 x -8177
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 12,666,173, 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 | 12,666,173 | |
| -1 | -12,666,173 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,666,173.
Example:
1 x 12,666,173 = 12,666,173
and
-1 x -12,666,173 = 12,666,173
Notice both answers equal 12,666,173
With that explanation out of the way, let's continue. Next, we take the number 12,666,173 and divide it by 2:
12,666,173 ÷ 2 = 6,333,086.5
If the quotient is a whole number, then 2 and 6,333,086.5 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 | 12,666,173 | |
| -1 | -12,666,173 |
Now, we try dividing 12,666,173 by 3:
12,666,173 ÷ 3 = 4,222,057.6667
If the quotient is a whole number, then 3 and 4,222,057.6667 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 | 12,666,173 | |
| -1 | -12,666,173 |
Let's try dividing by 4:
12,666,173 ÷ 4 = 3,166,543.25
If the quotient is a whole number, then 4 and 3,166,543.25 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 | 12,666,173 | |
| -1 | 12,666,173 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 37 | 221 | 481 | 629 | 1,549 | 8,177 | 20,137 | 26,333 | 57,313 | 342,329 | 745,069 | 974,321 | 12,666,173 |
| -1 | -13 | -17 | -37 | -221 | -481 | -629 | -1,549 | -8,177 | -20,137 | -26,333 | -57,313 | -342,329 | -745,069 | -974,321 | -12,666,173 |
Here are some more numbers to try:
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