A:
Positive:
1 x 862536855 x 172507377 x 1232195529 x 297426535 x 2464391145 x 594853203 x 4248951015 x 84979
Negative:
-1 x -86253685-5 x -17250737-7 x -12321955-29 x -2974265-35 x -2464391-145 x -594853-203 x -424895-1015 x -84979
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 86,253,685, 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 | 86,253,685 | |
| -1 | -86,253,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 86,253,685.
Example:
1 x 86,253,685 = 86,253,685
and
-1 x -86,253,685 = 86,253,685
Notice both answers equal 86,253,685
With that explanation out of the way, let's continue. Next, we take the number 86,253,685 and divide it by 2:
86,253,685 ÷ 2 = 43,126,842.5
If the quotient is a whole number, then 2 and 43,126,842.5 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 | 86,253,685 | |
| -1 | -86,253,685 |
Now, we try dividing 86,253,685 by 3:
86,253,685 ÷ 3 = 28,751,228.3333
If the quotient is a whole number, then 3 and 28,751,228.3333 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 | 86,253,685 | |
| -1 | -86,253,685 |
Let's try dividing by 4:
86,253,685 ÷ 4 = 21,563,421.25
If the quotient is a whole number, then 4 and 21,563,421.25 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 | 86,253,685 | |
| -1 | 86,253,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 29 | 35 | 145 | 203 | 1,015 | 84,979 | 424,895 | 594,853 | 2,464,391 | 2,974,265 | 12,321,955 | 17,250,737 | 86,253,685 |
| -1 | -5 | -7 | -29 | -35 | -145 | -203 | -1,015 | -84,979 | -424,895 | -594,853 | -2,464,391 | -2,974,265 | -12,321,955 | -17,250,737 | -86,253,685 |
Here are some more numbers to try:
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