A:
Positive:
1 x 8515035111 x 774094113 x 655002729 x 2936219143 x 595457319 x 266929377 x 2258634147 x 20533
Negative:
-1 x -85150351-11 x -7740941-13 x -6550027-29 x -2936219-143 x -595457-319 x -266929-377 x -225863-4147 x -20533
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 85,150,351, 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 | 85,150,351 | |
| -1 | -85,150,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,150,351.
Example:
1 x 85,150,351 = 85,150,351
and
-1 x -85,150,351 = 85,150,351
Notice both answers equal 85,150,351
With that explanation out of the way, let's continue. Next, we take the number 85,150,351 and divide it by 2:
85,150,351 ÷ 2 = 42,575,175.5
If the quotient is a whole number, then 2 and 42,575,175.5 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 | 85,150,351 | |
| -1 | -85,150,351 |
Now, we try dividing 85,150,351 by 3:
85,150,351 ÷ 3 = 28,383,450.3333
If the quotient is a whole number, then 3 and 28,383,450.3333 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 | 85,150,351 | |
| -1 | -85,150,351 |
Let's try dividing by 4:
85,150,351 ÷ 4 = 21,287,587.75
If the quotient is a whole number, then 4 and 21,287,587.75 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 | 85,150,351 | |
| -1 | 85,150,351 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 29 | 143 | 319 | 377 | 4,147 | 20,533 | 225,863 | 266,929 | 595,457 | 2,936,219 | 6,550,027 | 7,740,941 | 85,150,351 |
| -1 | -11 | -13 | -29 | -143 | -319 | -377 | -4,147 | -20,533 | -225,863 | -266,929 | -595,457 | -2,936,219 | -6,550,027 | -7,740,941 | -85,150,351 |
Here are some more numbers to try:
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