A:
Positive:
1 x 2867563377 x 4096519141 x 699405773 x 3928169287 x 999151511 x 5611672993 x 9580913687 x 20951
Negative:
-1 x -286756337-7 x -40965191-41 x -6994057-73 x -3928169-287 x -999151-511 x -561167-2993 x -95809-13687 x -20951
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 286,756,337, 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 | 286,756,337 | |
| -1 | -286,756,337 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 286,756,337.
Example:
1 x 286,756,337 = 286,756,337
and
-1 x -286,756,337 = 286,756,337
Notice both answers equal 286,756,337
With that explanation out of the way, let's continue. Next, we take the number 286,756,337 and divide it by 2:
286,756,337 ÷ 2 = 143,378,168.5
If the quotient is a whole number, then 2 and 143,378,168.5 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 | 286,756,337 | |
| -1 | -286,756,337 |
Now, we try dividing 286,756,337 by 3:
286,756,337 ÷ 3 = 95,585,445.6667
If the quotient is a whole number, then 3 and 95,585,445.6667 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 | 286,756,337 | |
| -1 | -286,756,337 |
Let's try dividing by 4:
286,756,337 ÷ 4 = 71,689,084.25
If the quotient is a whole number, then 4 and 71,689,084.25 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 | 286,756,337 | |
| -1 | 286,756,337 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 73 | 287 | 511 | 2,993 | 13,687 | 20,951 | 95,809 | 561,167 | 999,151 | 3,928,169 | 6,994,057 | 40,965,191 | 286,756,337 |
| -1 | -7 | -41 | -73 | -287 | -511 | -2,993 | -13,687 | -20,951 | -95,809 | -561,167 | -999,151 | -3,928,169 | -6,994,057 | -40,965,191 | -286,756,337 |
Here are some more numbers to try:
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