A:
Positive:
1 x 80655617 x 115222341 x 196721157 x 51373179 x 45059287 x 281031099 x 73391253 x 6437
Negative:
-1 x -8065561-7 x -1152223-41 x -196721-157 x -51373-179 x -45059-287 x -28103-1099 x -7339-1253 x -6437
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 8,065,561, 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 | 8,065,561 | |
| -1 | -8,065,561 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,065,561.
Example:
1 x 8,065,561 = 8,065,561
and
-1 x -8,065,561 = 8,065,561
Notice both answers equal 8,065,561
With that explanation out of the way, let's continue. Next, we take the number 8,065,561 and divide it by 2:
8,065,561 ÷ 2 = 4,032,780.5
If the quotient is a whole number, then 2 and 4,032,780.5 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 | 8,065,561 | |
| -1 | -8,065,561 |
Now, we try dividing 8,065,561 by 3:
8,065,561 ÷ 3 = 2,688,520.3333
If the quotient is a whole number, then 3 and 2,688,520.3333 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 | 8,065,561 | |
| -1 | -8,065,561 |
Let's try dividing by 4:
8,065,561 ÷ 4 = 2,016,390.25
If the quotient is a whole number, then 4 and 2,016,390.25 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 | 8,065,561 | |
| -1 | 8,065,561 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 157 | 179 | 287 | 1,099 | 1,253 | 6,437 | 7,339 | 28,103 | 45,059 | 51,373 | 196,721 | 1,152,223 | 8,065,561 |
| -1 | -7 | -41 | -157 | -179 | -287 | -1,099 | -1,253 | -6,437 | -7,339 | -28,103 | -45,059 | -51,373 | -196,721 | -1,152,223 | -8,065,561 |
Here are some more numbers to try:
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