A:
Positive:
1 x 9149297311 x 831754313 x 703792147 x 1946659143 x 639811517 x 176969611 x 1497436721 x 13613
Negative:
-1 x -91492973-11 x -8317543-13 x -7037921-47 x -1946659-143 x -639811-517 x -176969-611 x -149743-6721 x -13613
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 91,492,973, 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 | 91,492,973 | |
| -1 | -91,492,973 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 91,492,973.
Example:
1 x 91,492,973 = 91,492,973
and
-1 x -91,492,973 = 91,492,973
Notice both answers equal 91,492,973
With that explanation out of the way, let's continue. Next, we take the number 91,492,973 and divide it by 2:
91,492,973 ÷ 2 = 45,746,486.5
If the quotient is a whole number, then 2 and 45,746,486.5 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 | 91,492,973 | |
| -1 | -91,492,973 |
Now, we try dividing 91,492,973 by 3:
91,492,973 ÷ 3 = 30,497,657.6667
If the quotient is a whole number, then 3 and 30,497,657.6667 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 | 91,492,973 | |
| -1 | -91,492,973 |
Let's try dividing by 4:
91,492,973 ÷ 4 = 22,873,243.25
If the quotient is a whole number, then 4 and 22,873,243.25 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 | 91,492,973 | |
| -1 | 91,492,973 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 47 | 143 | 517 | 611 | 6,721 | 13,613 | 149,743 | 176,969 | 639,811 | 1,946,659 | 7,037,921 | 8,317,543 | 91,492,973 |
| -1 | -11 | -13 | -47 | -143 | -517 | -611 | -6,721 | -13,613 | -149,743 | -176,969 | -639,811 | -1,946,659 | -7,037,921 | -8,317,543 | -91,492,973 |
Here are some more numbers to try:
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