A:
Positive:
1 x 271178397 x 387397717 x 159516731 x 874769119 x 227881217 x 124967527 x 514573689 x 7351
Negative:
-1 x -27117839-7 x -3873977-17 x -1595167-31 x -874769-119 x -227881-217 x -124967-527 x -51457-3689 x -7351
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 27,117,839, 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 | 27,117,839 | |
| -1 | -27,117,839 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,117,839.
Example:
1 x 27,117,839 = 27,117,839
and
-1 x -27,117,839 = 27,117,839
Notice both answers equal 27,117,839
With that explanation out of the way, let's continue. Next, we take the number 27,117,839 and divide it by 2:
27,117,839 ÷ 2 = 13,558,919.5
If the quotient is a whole number, then 2 and 13,558,919.5 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 | 27,117,839 | |
| -1 | -27,117,839 |
Now, we try dividing 27,117,839 by 3:
27,117,839 ÷ 3 = 9,039,279.6667
If the quotient is a whole number, then 3 and 9,039,279.6667 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 | 27,117,839 | |
| -1 | -27,117,839 |
Let's try dividing by 4:
27,117,839 ÷ 4 = 6,779,459.75
If the quotient is a whole number, then 4 and 6,779,459.75 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 | 27,117,839 | |
| -1 | 27,117,839 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 31 | 119 | 217 | 527 | 3,689 | 7,351 | 51,457 | 124,967 | 227,881 | 874,769 | 1,595,167 | 3,873,977 | 27,117,839 |
| -1 | -7 | -17 | -31 | -119 | -217 | -527 | -3,689 | -7,351 | -51,457 | -124,967 | -227,881 | -874,769 | -1,595,167 | -3,873,977 | -27,117,839 |
Here are some more numbers to try:
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