A:
Positive:
1 x 26530725111 x 24118841251 x 1057001307 x 864193313 x 8476272761 x 960913377 x 785633443 x 77057
Negative:
-1 x -265307251-11 x -24118841-251 x -1057001-307 x -864193-313 x -847627-2761 x -96091-3377 x -78563-3443 x -77057
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 265,307,251, 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 | 265,307,251 | |
| -1 | -265,307,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 265,307,251.
Example:
1 x 265,307,251 = 265,307,251
and
-1 x -265,307,251 = 265,307,251
Notice both answers equal 265,307,251
With that explanation out of the way, let's continue. Next, we take the number 265,307,251 and divide it by 2:
265,307,251 ÷ 2 = 132,653,625.5
If the quotient is a whole number, then 2 and 132,653,625.5 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 | 265,307,251 | |
| -1 | -265,307,251 |
Now, we try dividing 265,307,251 by 3:
265,307,251 ÷ 3 = 88,435,750.3333
If the quotient is a whole number, then 3 and 88,435,750.3333 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 | 265,307,251 | |
| -1 | -265,307,251 |
Let's try dividing by 4:
265,307,251 ÷ 4 = 66,326,812.75
If the quotient is a whole number, then 4 and 66,326,812.75 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 | 265,307,251 | |
| -1 | 265,307,251 |
If you did it right, you will end up with this table:
| 1 | 11 | 251 | 307 | 313 | 2,761 | 3,377 | 3,443 | 77,057 | 78,563 | 96,091 | 847,627 | 864,193 | 1,057,001 | 24,118,841 | 265,307,251 |
| -1 | -11 | -251 | -307 | -313 | -2,761 | -3,377 | -3,443 | -77,057 | -78,563 | -96,091 | -847,627 | -864,193 | -1,057,001 | -24,118,841 | -265,307,251 |
Here are some more numbers to try:
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