A:
Positive:
1 x 91185855 x 18237177 x 130265535 x 26053161 x 149485305 x 29897427 x 213552135 x 4271
Negative:
-1 x -9118585-5 x -1823717-7 x -1302655-35 x -260531-61 x -149485-305 x -29897-427 x -21355-2135 x -4271
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 9,118,585, 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 | 9,118,585 | |
| -1 | -9,118,585 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,118,585.
Example:
1 x 9,118,585 = 9,118,585
and
-1 x -9,118,585 = 9,118,585
Notice both answers equal 9,118,585
With that explanation out of the way, let's continue. Next, we take the number 9,118,585 and divide it by 2:
9,118,585 ÷ 2 = 4,559,292.5
If the quotient is a whole number, then 2 and 4,559,292.5 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 | 9,118,585 | |
| -1 | -9,118,585 |
Now, we try dividing 9,118,585 by 3:
9,118,585 ÷ 3 = 3,039,528.3333
If the quotient is a whole number, then 3 and 3,039,528.3333 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 | 9,118,585 | |
| -1 | -9,118,585 |
Let's try dividing by 4:
9,118,585 ÷ 4 = 2,279,646.25
If the quotient is a whole number, then 4 and 2,279,646.25 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 | 9,118,585 | |
| -1 | 9,118,585 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 61 | 305 | 427 | 2,135 | 4,271 | 21,355 | 29,897 | 149,485 | 260,531 | 1,302,655 | 1,823,717 | 9,118,585 |
| -1 | -5 | -7 | -35 | -61 | -305 | -427 | -2,135 | -4,271 | -21,355 | -29,897 | -149,485 | -260,531 | -1,302,655 | -1,823,717 | -9,118,585 |
Here are some more numbers to try:
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