A:
Positive:
1 x 2757564711 x 250687731 x 889537193 x 142879341 x 80867419 x 658132123 x 129894609 x 5983
Negative:
-1 x -27575647-11 x -2506877-31 x -889537-193 x -142879-341 x -80867-419 x -65813-2123 x -12989-4609 x -5983
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 27,575,647, 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 | 27,575,647 | |
| -1 | -27,575,647 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,575,647.
Example:
1 x 27,575,647 = 27,575,647
and
-1 x -27,575,647 = 27,575,647
Notice both answers equal 27,575,647
With that explanation out of the way, let's continue. Next, we take the number 27,575,647 and divide it by 2:
27,575,647 ÷ 2 = 13,787,823.5
If the quotient is a whole number, then 2 and 13,787,823.5 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 | 27,575,647 | |
| -1 | -27,575,647 |
Now, we try dividing 27,575,647 by 3:
27,575,647 ÷ 3 = 9,191,882.3333
If the quotient is a whole number, then 3 and 9,191,882.3333 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 | 27,575,647 | |
| -1 | -27,575,647 |
Let's try dividing by 4:
27,575,647 ÷ 4 = 6,893,911.75
If the quotient is a whole number, then 4 and 6,893,911.75 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 | 27,575,647 | |
| -1 | 27,575,647 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 193 | 341 | 419 | 2,123 | 4,609 | 5,983 | 12,989 | 65,813 | 80,867 | 142,879 | 889,537 | 2,506,877 | 27,575,647 |
| -1 | -11 | -31 | -193 | -341 | -419 | -2,123 | -4,609 | -5,983 | -12,989 | -65,813 | -80,867 | -142,879 | -889,537 | -2,506,877 | -27,575,647 |
Here are some more numbers to try:
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