A:
Positive:
1 x 1310532555 x 2621065117 x 770901585 x 1541803751 x 1745052053 x 638353755 x 3490110265 x 12767
Negative:
-1 x -131053255-5 x -26210651-17 x -7709015-85 x -1541803-751 x -174505-2053 x -63835-3755 x -34901-10265 x -12767
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 131,053,255, 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 | 131,053,255 | |
| -1 | -131,053,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,053,255.
Example:
1 x 131,053,255 = 131,053,255
and
-1 x -131,053,255 = 131,053,255
Notice both answers equal 131,053,255
With that explanation out of the way, let's continue. Next, we take the number 131,053,255 and divide it by 2:
131,053,255 ÷ 2 = 65,526,627.5
If the quotient is a whole number, then 2 and 65,526,627.5 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 | 131,053,255 | |
| -1 | -131,053,255 |
Now, we try dividing 131,053,255 by 3:
131,053,255 ÷ 3 = 43,684,418.3333
If the quotient is a whole number, then 3 and 43,684,418.3333 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 | 131,053,255 | |
| -1 | -131,053,255 |
Let's try dividing by 4:
131,053,255 ÷ 4 = 32,763,313.75
If the quotient is a whole number, then 4 and 32,763,313.75 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 | 131,053,255 | |
| -1 | 131,053,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 751 | 2,053 | 3,755 | 10,265 | 12,767 | 34,901 | 63,835 | 174,505 | 1,541,803 | 7,709,015 | 26,210,651 | 131,053,255 |
| -1 | -5 | -17 | -85 | -751 | -2,053 | -3,755 | -10,265 | -12,767 | -34,901 | -63,835 | -174,505 | -1,541,803 | -7,709,015 | -26,210,651 | -131,053,255 |
Here are some more numbers to try:
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