A:
Positive:
1 x 137712555 x 275425153 x 259835157 x 87715265 x 51967331 x 41605785 x 175431655 x 8321
Negative:
-1 x -13771255-5 x -2754251-53 x -259835-157 x -87715-265 x -51967-331 x -41605-785 x -17543-1655 x -8321
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 13,771,255, 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 | 13,771,255 | |
| -1 | -13,771,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,771,255.
Example:
1 x 13,771,255 = 13,771,255
and
-1 x -13,771,255 = 13,771,255
Notice both answers equal 13,771,255
With that explanation out of the way, let's continue. Next, we take the number 13,771,255 and divide it by 2:
13,771,255 ÷ 2 = 6,885,627.5
If the quotient is a whole number, then 2 and 6,885,627.5 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 | 13,771,255 | |
| -1 | -13,771,255 |
Now, we try dividing 13,771,255 by 3:
13,771,255 ÷ 3 = 4,590,418.3333
If the quotient is a whole number, then 3 and 4,590,418.3333 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 | 13,771,255 | |
| -1 | -13,771,255 |
Let's try dividing by 4:
13,771,255 ÷ 4 = 3,442,813.75
If the quotient is a whole number, then 4 and 3,442,813.75 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 | 13,771,255 | |
| -1 | 13,771,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 157 | 265 | 331 | 785 | 1,655 | 8,321 | 17,543 | 41,605 | 51,967 | 87,715 | 259,835 | 2,754,251 | 13,771,255 |
| -1 | -5 | -53 | -157 | -265 | -331 | -785 | -1,655 | -8,321 | -17,543 | -41,605 | -51,967 | -87,715 | -259,835 | -2,754,251 | -13,771,255 |
Here are some more numbers to try:
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