A:
Positive:
1 x 8557404713 x 6582619109 x 785083131 x 653237461 x 1856271417 x 603911703 x 502495993 x 14279
Negative:
-1 x -85574047-13 x -6582619-109 x -785083-131 x -653237-461 x -185627-1417 x -60391-1703 x -50249-5993 x -14279
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 85,574,047, 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 | 85,574,047 | |
| -1 | -85,574,047 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,574,047.
Example:
1 x 85,574,047 = 85,574,047
and
-1 x -85,574,047 = 85,574,047
Notice both answers equal 85,574,047
With that explanation out of the way, let's continue. Next, we take the number 85,574,047 and divide it by 2:
85,574,047 ÷ 2 = 42,787,023.5
If the quotient is a whole number, then 2 and 42,787,023.5 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 | 85,574,047 | |
| -1 | -85,574,047 |
Now, we try dividing 85,574,047 by 3:
85,574,047 ÷ 3 = 28,524,682.3333
If the quotient is a whole number, then 3 and 28,524,682.3333 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 | 85,574,047 | |
| -1 | -85,574,047 |
Let's try dividing by 4:
85,574,047 ÷ 4 = 21,393,511.75
If the quotient is a whole number, then 4 and 21,393,511.75 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 | 85,574,047 | |
| -1 | 85,574,047 |
If you did it right, you will end up with this table:
| 1 | 13 | 109 | 131 | 461 | 1,417 | 1,703 | 5,993 | 14,279 | 50,249 | 60,391 | 185,627 | 653,237 | 785,083 | 6,582,619 | 85,574,047 |
| -1 | -13 | -109 | -131 | -461 | -1,417 | -1,703 | -5,993 | -14,279 | -50,249 | -60,391 | -185,627 | -653,237 | -785,083 | -6,582,619 | -85,574,047 |
Here are some more numbers to try:
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