A:
Positive:
1 x 844143855 x 1688287711 x 767403555 x 153480771 x 1188935355 x 237787781 x 1080853905 x 21617
Negative:
-1 x -84414385-5 x -16882877-11 x -7674035-55 x -1534807-71 x -1188935-355 x -237787-781 x -108085-3905 x -21617
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 84,414,385, 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 | 84,414,385 | |
| -1 | -84,414,385 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 84,414,385.
Example:
1 x 84,414,385 = 84,414,385
and
-1 x -84,414,385 = 84,414,385
Notice both answers equal 84,414,385
With that explanation out of the way, let's continue. Next, we take the number 84,414,385 and divide it by 2:
84,414,385 ÷ 2 = 42,207,192.5
If the quotient is a whole number, then 2 and 42,207,192.5 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 | 84,414,385 | |
| -1 | -84,414,385 |
Now, we try dividing 84,414,385 by 3:
84,414,385 ÷ 3 = 28,138,128.3333
If the quotient is a whole number, then 3 and 28,138,128.3333 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 | 84,414,385 | |
| -1 | -84,414,385 |
Let's try dividing by 4:
84,414,385 ÷ 4 = 21,103,596.25
If the quotient is a whole number, then 4 and 21,103,596.25 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 | 84,414,385 | |
| -1 | 84,414,385 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 71 | 355 | 781 | 3,905 | 21,617 | 108,085 | 237,787 | 1,188,935 | 1,534,807 | 7,674,035 | 16,882,877 | 84,414,385 |
| -1 | -5 | -11 | -55 | -71 | -355 | -781 | -3,905 | -21,617 | -108,085 | -237,787 | -1,188,935 | -1,534,807 | -7,674,035 | -16,882,877 | -84,414,385 |
Here are some more numbers to try:
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