A:
Positive:
1 x 89473455 x 178946911 x 81339523 x 38901555 x 162679115 x 77803121 x 73945253 x 35365605 x 14789643 x 139151265 x 70732783 x 3215
Negative:
-1 x -8947345-5 x -1789469-11 x -813395-23 x -389015-55 x -162679-115 x -77803-121 x -73945-253 x -35365-605 x -14789-643 x -13915-1265 x -7073-2783 x -3215
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 8,947,345, 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 | 8,947,345 | |
| -1 | -8,947,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,947,345.
Example:
1 x 8,947,345 = 8,947,345
and
-1 x -8,947,345 = 8,947,345
Notice both answers equal 8,947,345
With that explanation out of the way, let's continue. Next, we take the number 8,947,345 and divide it by 2:
8,947,345 ÷ 2 = 4,473,672.5
If the quotient is a whole number, then 2 and 4,473,672.5 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 | 8,947,345 | |
| -1 | -8,947,345 |
Now, we try dividing 8,947,345 by 3:
8,947,345 ÷ 3 = 2,982,448.3333
If the quotient is a whole number, then 3 and 2,982,448.3333 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 | 8,947,345 | |
| -1 | -8,947,345 |
Let's try dividing by 4:
8,947,345 ÷ 4 = 2,236,836.25
If the quotient is a whole number, then 4 and 2,236,836.25 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 | 8,947,345 | |
| -1 | 8,947,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 23 | 55 | 115 | 121 | 253 | 605 | 643 | 1,265 | 2,783 | 3,215 | 7,073 | 13,915 | 14,789 | 35,365 | 73,945 | 77,803 | 162,679 | 389,015 | 813,395 | 1,789,469 | 8,947,345 |
| -1 | -5 | -11 | -23 | -55 | -115 | -121 | -253 | -605 | -643 | -1,265 | -2,783 | -3,215 | -7,073 | -13,915 | -14,789 | -35,365 | -73,945 | -77,803 | -162,679 | -389,015 | -813,395 | -1,789,469 | -8,947,345 |
Here are some more numbers to try:
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