A:
Positive:
1 x 6150746355 x 1230149277 x 8786780535 x 175735611303 x 4720456515 x 944099121 x 6743513487 x 45605
Negative:
-1 x -615074635-5 x -123014927-7 x -87867805-35 x -17573561-1303 x -472045-6515 x -94409-9121 x -67435-13487 x -45605
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 615,074,635, 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 | 615,074,635 | |
| -1 | -615,074,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 615,074,635.
Example:
1 x 615,074,635 = 615,074,635
and
-1 x -615,074,635 = 615,074,635
Notice both answers equal 615,074,635
With that explanation out of the way, let's continue. Next, we take the number 615,074,635 and divide it by 2:
615,074,635 ÷ 2 = 307,537,317.5
If the quotient is a whole number, then 2 and 307,537,317.5 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 | 615,074,635 | |
| -1 | -615,074,635 |
Now, we try dividing 615,074,635 by 3:
615,074,635 ÷ 3 = 205,024,878.3333
If the quotient is a whole number, then 3 and 205,024,878.3333 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 | 615,074,635 | |
| -1 | -615,074,635 |
Let's try dividing by 4:
615,074,635 ÷ 4 = 153,768,658.75
If the quotient is a whole number, then 4 and 153,768,658.75 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 | 615,074,635 | |
| -1 | 615,074,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,303 | 6,515 | 9,121 | 13,487 | 45,605 | 67,435 | 94,409 | 472,045 | 17,573,561 | 87,867,805 | 123,014,927 | 615,074,635 |
| -1 | -5 | -7 | -35 | -1,303 | -6,515 | -9,121 | -13,487 | -45,605 | -67,435 | -94,409 | -472,045 | -17,573,561 | -87,867,805 | -123,014,927 | -615,074,635 |
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