A:
Positive:
1 x 8531935113 x 656302723 x 370953771 x 1201681299 x 285349923 x 924371633 x 522474019 x 21229
Negative:
-1 x -85319351-13 x -6563027-23 x -3709537-71 x -1201681-299 x -285349-923 x -92437-1633 x -52247-4019 x -21229
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 85,319,351, 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 | 85,319,351 | |
| -1 | -85,319,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,319,351.
Example:
1 x 85,319,351 = 85,319,351
and
-1 x -85,319,351 = 85,319,351
Notice both answers equal 85,319,351
With that explanation out of the way, let's continue. Next, we take the number 85,319,351 and divide it by 2:
85,319,351 ÷ 2 = 42,659,675.5
If the quotient is a whole number, then 2 and 42,659,675.5 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 | 85,319,351 | |
| -1 | -85,319,351 |
Now, we try dividing 85,319,351 by 3:
85,319,351 ÷ 3 = 28,439,783.6667
If the quotient is a whole number, then 3 and 28,439,783.6667 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 | 85,319,351 | |
| -1 | -85,319,351 |
Let's try dividing by 4:
85,319,351 ÷ 4 = 21,329,837.75
If the quotient is a whole number, then 4 and 21,329,837.75 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 | 85,319,351 | |
| -1 | 85,319,351 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 71 | 299 | 923 | 1,633 | 4,019 | 21,229 | 52,247 | 92,437 | 285,349 | 1,201,681 | 3,709,537 | 6,563,027 | 85,319,351 |
| -1 | -13 | -23 | -71 | -299 | -923 | -1,633 | -4,019 | -21,229 | -52,247 | -92,437 | -285,349 | -1,201,681 | -3,709,537 | -6,563,027 | -85,319,351 |
Here are some more numbers to try:
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