A:
Positive:
1 x 855568497 x 1222240723 x 3719863161 x 531409223 x 3836631561 x 548092383 x 359035129 x 16681
Negative:
-1 x -85556849-7 x -12222407-23 x -3719863-161 x -531409-223 x -383663-1561 x -54809-2383 x -35903-5129 x -16681
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 85,556,849, 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 | 85,556,849 | |
| -1 | -85,556,849 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,556,849.
Example:
1 x 85,556,849 = 85,556,849
and
-1 x -85,556,849 = 85,556,849
Notice both answers equal 85,556,849
With that explanation out of the way, let's continue. Next, we take the number 85,556,849 and divide it by 2:
85,556,849 ÷ 2 = 42,778,424.5
If the quotient is a whole number, then 2 and 42,778,424.5 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 | 85,556,849 | |
| -1 | -85,556,849 |
Now, we try dividing 85,556,849 by 3:
85,556,849 ÷ 3 = 28,518,949.6667
If the quotient is a whole number, then 3 and 28,518,949.6667 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 | 85,556,849 | |
| -1 | -85,556,849 |
Let's try dividing by 4:
85,556,849 ÷ 4 = 21,389,212.25
If the quotient is a whole number, then 4 and 21,389,212.25 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 | 85,556,849 | |
| -1 | 85,556,849 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 161 | 223 | 1,561 | 2,383 | 5,129 | 16,681 | 35,903 | 54,809 | 383,663 | 531,409 | 3,719,863 | 12,222,407 | 85,556,849 |
| -1 | -7 | -23 | -161 | -223 | -1,561 | -2,383 | -5,129 | -16,681 | -35,903 | -54,809 | -383,663 | -531,409 | -3,719,863 | -12,222,407 | -85,556,849 |
Here are some more numbers to try:
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