A:
Positive:
1 x 853512597 x 1219303743 x 1984913103 x 828653301 x 283559721 x 1183792753 x 310034429 x 19271
Negative:
-1 x -85351259-7 x -12193037-43 x -1984913-103 x -828653-301 x -283559-721 x -118379-2753 x -31003-4429 x -19271
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 85,351,259, 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 | 85,351,259 | |
| -1 | -85,351,259 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,351,259.
Example:
1 x 85,351,259 = 85,351,259
and
-1 x -85,351,259 = 85,351,259
Notice both answers equal 85,351,259
With that explanation out of the way, let's continue. Next, we take the number 85,351,259 and divide it by 2:
85,351,259 ÷ 2 = 42,675,629.5
If the quotient is a whole number, then 2 and 42,675,629.5 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 | 85,351,259 | |
| -1 | -85,351,259 |
Now, we try dividing 85,351,259 by 3:
85,351,259 ÷ 3 = 28,450,419.6667
If the quotient is a whole number, then 3 and 28,450,419.6667 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 | 85,351,259 | |
| -1 | -85,351,259 |
Let's try dividing by 4:
85,351,259 ÷ 4 = 21,337,814.75
If the quotient is a whole number, then 4 and 21,337,814.75 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 | 85,351,259 | |
| -1 | 85,351,259 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 103 | 301 | 721 | 2,753 | 4,429 | 19,271 | 31,003 | 118,379 | 283,559 | 828,653 | 1,984,913 | 12,193,037 | 85,351,259 |
| -1 | -7 | -43 | -103 | -301 | -721 | -2,753 | -4,429 | -19,271 | -31,003 | -118,379 | -283,559 | -828,653 | -1,984,913 | -12,193,037 | -85,351,259 |
Here are some more numbers to try:
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