A:
Positive:
1 x 914833155 x 182966637 x 1306904511 x 831666535 x 261380955 x 166333377 x 1188095385 x 237619
Negative:
-1 x -91483315-5 x -18296663-7 x -13069045-11 x -8316665-35 x -2613809-55 x -1663333-77 x -1188095-385 x -237619
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 91,483,315, 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 | 91,483,315 | |
| -1 | -91,483,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 91,483,315.
Example:
1 x 91,483,315 = 91,483,315
and
-1 x -91,483,315 = 91,483,315
Notice both answers equal 91,483,315
With that explanation out of the way, let's continue. Next, we take the number 91,483,315 and divide it by 2:
91,483,315 ÷ 2 = 45,741,657.5
If the quotient is a whole number, then 2 and 45,741,657.5 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 | 91,483,315 | |
| -1 | -91,483,315 |
Now, we try dividing 91,483,315 by 3:
91,483,315 ÷ 3 = 30,494,438.3333
If the quotient is a whole number, then 3 and 30,494,438.3333 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 | 91,483,315 | |
| -1 | -91,483,315 |
Let's try dividing by 4:
91,483,315 ÷ 4 = 22,870,828.75
If the quotient is a whole number, then 4 and 22,870,828.75 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 | 91,483,315 | |
| -1 | 91,483,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 237,619 | 1,188,095 | 1,663,333 | 2,613,809 | 8,316,665 | 13,069,045 | 18,296,663 | 91,483,315 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -237,619 | -1,188,095 | -1,663,333 | -2,613,809 | -8,316,665 | -13,069,045 | -18,296,663 | -91,483,315 |
Here are some more numbers to try:
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