A:
Positive:
1 x 26721544311 x 2429231331 x 861985337 x 7222039341 x 783623407 x 6565491147 x 23296912617 x 21179
Negative:
-1 x -267215443-11 x -24292313-31 x -8619853-37 x -7222039-341 x -783623-407 x -656549-1147 x -232969-12617 x -21179
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 267,215,443, 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 | 267,215,443 | |
| -1 | -267,215,443 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 267,215,443.
Example:
1 x 267,215,443 = 267,215,443
and
-1 x -267,215,443 = 267,215,443
Notice both answers equal 267,215,443
With that explanation out of the way, let's continue. Next, we take the number 267,215,443 and divide it by 2:
267,215,443 ÷ 2 = 133,607,721.5
If the quotient is a whole number, then 2 and 133,607,721.5 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 | 267,215,443 | |
| -1 | -267,215,443 |
Now, we try dividing 267,215,443 by 3:
267,215,443 ÷ 3 = 89,071,814.3333
If the quotient is a whole number, then 3 and 89,071,814.3333 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 | 267,215,443 | |
| -1 | -267,215,443 |
Let's try dividing by 4:
267,215,443 ÷ 4 = 66,803,860.75
If the quotient is a whole number, then 4 and 66,803,860.75 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 | 267,215,443 | |
| -1 | 267,215,443 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 37 | 341 | 407 | 1,147 | 12,617 | 21,179 | 232,969 | 656,549 | 783,623 | 7,222,039 | 8,619,853 | 24,292,313 | 267,215,443 |
| -1 | -11 | -31 | -37 | -341 | -407 | -1,147 | -12,617 | -21,179 | -232,969 | -656,549 | -783,623 | -7,222,039 | -8,619,853 | -24,292,313 | -267,215,443 |
Here are some more numbers to try:
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