A:
Positive:
1 x 1314412455 x 2628824913 x 1011086565 x 202217373 x 1800565365 x 360113949 x 1385054745 x 27701
Negative:
-1 x -131441245-5 x -26288249-13 x -10110865-65 x -2022173-73 x -1800565-365 x -360113-949 x -138505-4745 x -27701
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 131,441,245, 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 | 131,441,245 | |
| -1 | -131,441,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,441,245.
Example:
1 x 131,441,245 = 131,441,245
and
-1 x -131,441,245 = 131,441,245
Notice both answers equal 131,441,245
With that explanation out of the way, let's continue. Next, we take the number 131,441,245 and divide it by 2:
131,441,245 ÷ 2 = 65,720,622.5
If the quotient is a whole number, then 2 and 65,720,622.5 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 | 131,441,245 | |
| -1 | -131,441,245 |
Now, we try dividing 131,441,245 by 3:
131,441,245 ÷ 3 = 43,813,748.3333
If the quotient is a whole number, then 3 and 43,813,748.3333 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 | 131,441,245 | |
| -1 | -131,441,245 |
Let's try dividing by 4:
131,441,245 ÷ 4 = 32,860,311.25
If the quotient is a whole number, then 4 and 32,860,311.25 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 | 131,441,245 | |
| -1 | 131,441,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 73 | 365 | 949 | 4,745 | 27,701 | 138,505 | 360,113 | 1,800,565 | 2,022,173 | 10,110,865 | 26,288,249 | 131,441,245 |
| -1 | -5 | -13 | -65 | -73 | -365 | -949 | -4,745 | -27,701 | -138,505 | -360,113 | -1,800,565 | -2,022,173 | -10,110,865 | -26,288,249 | -131,441,245 |
Here are some more numbers to try:
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