A:
Positive:
1 x 87780655 x 175561323 x 38165537 x 237245115 x 76331185 x 47449851 x 103152063 x 4255
Negative:
-1 x -8778065-5 x -1755613-23 x -381655-37 x -237245-115 x -76331-185 x -47449-851 x -10315-2063 x -4255
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 8,778,065, 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 | 8,778,065 | |
| -1 | -8,778,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,778,065.
Example:
1 x 8,778,065 = 8,778,065
and
-1 x -8,778,065 = 8,778,065
Notice both answers equal 8,778,065
With that explanation out of the way, let's continue. Next, we take the number 8,778,065 and divide it by 2:
8,778,065 ÷ 2 = 4,389,032.5
If the quotient is a whole number, then 2 and 4,389,032.5 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 | 8,778,065 | |
| -1 | -8,778,065 |
Now, we try dividing 8,778,065 by 3:
8,778,065 ÷ 3 = 2,926,021.6667
If the quotient is a whole number, then 3 and 2,926,021.6667 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 | 8,778,065 | |
| -1 | -8,778,065 |
Let's try dividing by 4:
8,778,065 ÷ 4 = 2,194,516.25
If the quotient is a whole number, then 4 and 2,194,516.25 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 | 8,778,065 | |
| -1 | 8,778,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 37 | 115 | 185 | 851 | 2,063 | 4,255 | 10,315 | 47,449 | 76,331 | 237,245 | 381,655 | 1,755,613 | 8,778,065 |
| -1 | -5 | -23 | -37 | -115 | -185 | -851 | -2,063 | -4,255 | -10,315 | -47,449 | -76,331 | -237,245 | -381,655 | -1,755,613 | -8,778,065 |
Here are some more numbers to try:
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