A:
Positive:
1 x 863020137 x 1232885917 x 5076589119 x 725227191 x 4518431337 x 645493247 x 265793797 x 22729
Negative:
-1 x -86302013-7 x -12328859-17 x -5076589-119 x -725227-191 x -451843-1337 x -64549-3247 x -26579-3797 x -22729
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 86,302,013, 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 | 86,302,013 | |
| -1 | -86,302,013 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 86,302,013.
Example:
1 x 86,302,013 = 86,302,013
and
-1 x -86,302,013 = 86,302,013
Notice both answers equal 86,302,013
With that explanation out of the way, let's continue. Next, we take the number 86,302,013 and divide it by 2:
86,302,013 ÷ 2 = 43,151,006.5
If the quotient is a whole number, then 2 and 43,151,006.5 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 | 86,302,013 | |
| -1 | -86,302,013 |
Now, we try dividing 86,302,013 by 3:
86,302,013 ÷ 3 = 28,767,337.6667
If the quotient is a whole number, then 3 and 28,767,337.6667 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 | 86,302,013 | |
| -1 | -86,302,013 |
Let's try dividing by 4:
86,302,013 ÷ 4 = 21,575,503.25
If the quotient is a whole number, then 4 and 21,575,503.25 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 | 86,302,013 | |
| -1 | 86,302,013 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 191 | 1,337 | 3,247 | 3,797 | 22,729 | 26,579 | 64,549 | 451,843 | 725,227 | 5,076,589 | 12,328,859 | 86,302,013 |
| -1 | -7 | -17 | -119 | -191 | -1,337 | -3,247 | -3,797 | -22,729 | -26,579 | -64,549 | -451,843 | -725,227 | -5,076,589 | -12,328,859 | -86,302,013 |
Here are some more numbers to try:
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