A:
Positive:
1 x 8326665113 x 640512731 x 2686021107 x 778193403 x 2066171391 x 598611931 x 431213317 x 25103
Negative:
-1 x -83266651-13 x -6405127-31 x -2686021-107 x -778193-403 x -206617-1391 x -59861-1931 x -43121-3317 x -25103
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 83,266,651, 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 | 83,266,651 | |
| -1 | -83,266,651 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 83,266,651.
Example:
1 x 83,266,651 = 83,266,651
and
-1 x -83,266,651 = 83,266,651
Notice both answers equal 83,266,651
With that explanation out of the way, let's continue. Next, we take the number 83,266,651 and divide it by 2:
83,266,651 ÷ 2 = 41,633,325.5
If the quotient is a whole number, then 2 and 41,633,325.5 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 | 83,266,651 | |
| -1 | -83,266,651 |
Now, we try dividing 83,266,651 by 3:
83,266,651 ÷ 3 = 27,755,550.3333
If the quotient is a whole number, then 3 and 27,755,550.3333 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 | 83,266,651 | |
| -1 | -83,266,651 |
Let's try dividing by 4:
83,266,651 ÷ 4 = 20,816,662.75
If the quotient is a whole number, then 4 and 20,816,662.75 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 | 83,266,651 | |
| -1 | 83,266,651 |
If you did it right, you will end up with this table:
| 1 | 13 | 31 | 107 | 403 | 1,391 | 1,931 | 3,317 | 25,103 | 43,121 | 59,861 | 206,617 | 778,193 | 2,686,021 | 6,405,127 | 83,266,651 |
| -1 | -13 | -31 | -107 | -403 | -1,391 | -1,931 | -3,317 | -25,103 | -43,121 | -59,861 | -206,617 | -778,193 | -2,686,021 | -6,405,127 | -83,266,651 |
Here are some more numbers to try:
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