A:
Positive:
1 x 11552542111 x 1050231117 x 6795613173 x 667777187 x 6177831903 x 607072941 x 392813571 x 32351
Negative:
-1 x -115525421-11 x -10502311-17 x -6795613-173 x -667777-187 x -617783-1903 x -60707-2941 x -39281-3571 x -32351
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 115,525,421, 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 | 115,525,421 | |
| -1 | -115,525,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,525,421.
Example:
1 x 115,525,421 = 115,525,421
and
-1 x -115,525,421 = 115,525,421
Notice both answers equal 115,525,421
With that explanation out of the way, let's continue. Next, we take the number 115,525,421 and divide it by 2:
115,525,421 ÷ 2 = 57,762,710.5
If the quotient is a whole number, then 2 and 57,762,710.5 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 | 115,525,421 | |
| -1 | -115,525,421 |
Now, we try dividing 115,525,421 by 3:
115,525,421 ÷ 3 = 38,508,473.6667
If the quotient is a whole number, then 3 and 38,508,473.6667 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 | 115,525,421 | |
| -1 | -115,525,421 |
Let's try dividing by 4:
115,525,421 ÷ 4 = 28,881,355.25
If the quotient is a whole number, then 4 and 28,881,355.25 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 | 115,525,421 | |
| -1 | 115,525,421 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 173 | 187 | 1,903 | 2,941 | 3,571 | 32,351 | 39,281 | 60,707 | 617,783 | 667,777 | 6,795,613 | 10,502,311 | 115,525,421 |
| -1 | -11 | -17 | -173 | -187 | -1,903 | -2,941 | -3,571 | -32,351 | -39,281 | -60,707 | -617,783 | -667,777 | -6,795,613 | -10,502,311 | -115,525,421 |
Here are some more numbers to try:
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