A:
Positive:
1 x 2651571655 x 530314337 x 3787959513 x 2039670535 x 757591965 x 407934191 x 2913815455 x 582763
Negative:
-1 x -265157165-5 x -53031433-7 x -37879595-13 x -20396705-35 x -7575919-65 x -4079341-91 x -2913815-455 x -582763
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 265,157,165, 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 | 265,157,165 | |
| -1 | -265,157,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 265,157,165.
Example:
1 x 265,157,165 = 265,157,165
and
-1 x -265,157,165 = 265,157,165
Notice both answers equal 265,157,165
With that explanation out of the way, let's continue. Next, we take the number 265,157,165 and divide it by 2:
265,157,165 ÷ 2 = 132,578,582.5
If the quotient is a whole number, then 2 and 132,578,582.5 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 | 265,157,165 | |
| -1 | -265,157,165 |
Now, we try dividing 265,157,165 by 3:
265,157,165 ÷ 3 = 88,385,721.6667
If the quotient is a whole number, then 3 and 88,385,721.6667 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 | 265,157,165 | |
| -1 | -265,157,165 |
Let's try dividing by 4:
265,157,165 ÷ 4 = 66,289,291.25
If the quotient is a whole number, then 4 and 66,289,291.25 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 | 265,157,165 | |
| -1 | 265,157,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 582,763 | 2,913,815 | 4,079,341 | 7,575,919 | 20,396,705 | 37,879,595 | 53,031,433 | 265,157,165 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -582,763 | -2,913,815 | -4,079,341 | -7,575,919 | -20,396,705 | -37,879,595 | -53,031,433 | -265,157,165 |
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