A:
Positive:
1 x 865804037 x 1236862913 x 666003149 x 176694791 x 951433343 x 252421637 x 1359194459 x 19417
Negative:
-1 x -86580403-7 x -12368629-13 x -6660031-49 x -1766947-91 x -951433-343 x -252421-637 x -135919-4459 x -19417
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 86,580,403, 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 | 86,580,403 | |
| -1 | -86,580,403 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 86,580,403.
Example:
1 x 86,580,403 = 86,580,403
and
-1 x -86,580,403 = 86,580,403
Notice both answers equal 86,580,403
With that explanation out of the way, let's continue. Next, we take the number 86,580,403 and divide it by 2:
86,580,403 ÷ 2 = 43,290,201.5
If the quotient is a whole number, then 2 and 43,290,201.5 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 | 86,580,403 | |
| -1 | -86,580,403 |
Now, we try dividing 86,580,403 by 3:
86,580,403 ÷ 3 = 28,860,134.3333
If the quotient is a whole number, then 3 and 28,860,134.3333 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 | 86,580,403 | |
| -1 | -86,580,403 |
Let's try dividing by 4:
86,580,403 ÷ 4 = 21,645,100.75
If the quotient is a whole number, then 4 and 21,645,100.75 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 | 86,580,403 | |
| -1 | 86,580,403 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 49 | 91 | 343 | 637 | 4,459 | 19,417 | 135,919 | 252,421 | 951,433 | 1,766,947 | 6,660,031 | 12,368,629 | 86,580,403 |
| -1 | -7 | -13 | -49 | -91 | -343 | -637 | -4,459 | -19,417 | -135,919 | -252,421 | -951,433 | -1,766,947 | -6,660,031 | -12,368,629 | -86,580,403 |
Here are some more numbers to try:
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