A:
Positive:
1 x 99122655 x 198245311 x 90111555 x 180223229 x 43285787 x 125951145 x 86572519 x 3935
Negative:
-1 x -9912265-5 x -1982453-11 x -901115-55 x -180223-229 x -43285-787 x -12595-1145 x -8657-2519 x -3935
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 9,912,265, 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 | 9,912,265 | |
| -1 | -9,912,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,912,265.
Example:
1 x 9,912,265 = 9,912,265
and
-1 x -9,912,265 = 9,912,265
Notice both answers equal 9,912,265
With that explanation out of the way, let's continue. Next, we take the number 9,912,265 and divide it by 2:
9,912,265 ÷ 2 = 4,956,132.5
If the quotient is a whole number, then 2 and 4,956,132.5 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 | 9,912,265 | |
| -1 | -9,912,265 |
Now, we try dividing 9,912,265 by 3:
9,912,265 ÷ 3 = 3,304,088.3333
If the quotient is a whole number, then 3 and 3,304,088.3333 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 | 9,912,265 | |
| -1 | -9,912,265 |
Let's try dividing by 4:
9,912,265 ÷ 4 = 2,478,066.25
If the quotient is a whole number, then 4 and 2,478,066.25 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 | 9,912,265 | |
| -1 | 9,912,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 229 | 787 | 1,145 | 2,519 | 3,935 | 8,657 | 12,595 | 43,285 | 180,223 | 901,115 | 1,982,453 | 9,912,265 |
| -1 | -5 | -11 | -55 | -229 | -787 | -1,145 | -2,519 | -3,935 | -8,657 | -12,595 | -43,285 | -180,223 | -901,115 | -1,982,453 | -9,912,265 |
Here are some more numbers to try:
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