A:
Positive:
1 x 7155466437 x 10222094917 x 42090979119 x 6012997719 x 9951975033 x 1421718363 x 8556112223 x 58541
Negative:
-1 x -715546643-7 x -102220949-17 x -42090979-119 x -6012997-719 x -995197-5033 x -142171-8363 x -85561-12223 x -58541
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 715,546,643, 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 | 715,546,643 | |
| -1 | -715,546,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 715,546,643.
Example:
1 x 715,546,643 = 715,546,643
and
-1 x -715,546,643 = 715,546,643
Notice both answers equal 715,546,643
With that explanation out of the way, let's continue. Next, we take the number 715,546,643 and divide it by 2:
715,546,643 ÷ 2 = 357,773,321.5
If the quotient is a whole number, then 2 and 357,773,321.5 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 | 715,546,643 | |
| -1 | -715,546,643 |
Now, we try dividing 715,546,643 by 3:
715,546,643 ÷ 3 = 238,515,547.6667
If the quotient is a whole number, then 3 and 238,515,547.6667 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 | 715,546,643 | |
| -1 | -715,546,643 |
Let's try dividing by 4:
715,546,643 ÷ 4 = 178,886,660.75
If the quotient is a whole number, then 4 and 178,886,660.75 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 | 715,546,643 | |
| -1 | 715,546,643 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 719 | 5,033 | 8,363 | 12,223 | 58,541 | 85,561 | 142,171 | 995,197 | 6,012,997 | 42,090,979 | 102,220,949 | 715,546,643 |
| -1 | -7 | -17 | -119 | -719 | -5,033 | -8,363 | -12,223 | -58,541 | -85,561 | -142,171 | -995,197 | -6,012,997 | -42,090,979 | -102,220,949 | -715,546,643 |
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