A:
Positive:
1 x 73880442147 x 15719243137 x 5392733179 x 4127399641 x 11525816439 x 1147398413 x 8781724523 x 30127
Negative:
-1 x -738804421-47 x -15719243-137 x -5392733-179 x -4127399-641 x -1152581-6439 x -114739-8413 x -87817-24523 x -30127
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 738,804,421, 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 | 738,804,421 | |
| -1 | -738,804,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 738,804,421.
Example:
1 x 738,804,421 = 738,804,421
and
-1 x -738,804,421 = 738,804,421
Notice both answers equal 738,804,421
With that explanation out of the way, let's continue. Next, we take the number 738,804,421 and divide it by 2:
738,804,421 ÷ 2 = 369,402,210.5
If the quotient is a whole number, then 2 and 369,402,210.5 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 | 738,804,421 | |
| -1 | -738,804,421 |
Now, we try dividing 738,804,421 by 3:
738,804,421 ÷ 3 = 246,268,140.3333
If the quotient is a whole number, then 3 and 246,268,140.3333 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 | 738,804,421 | |
| -1 | -738,804,421 |
Let's try dividing by 4:
738,804,421 ÷ 4 = 184,701,105.25
If the quotient is a whole number, then 4 and 184,701,105.25 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 | 738,804,421 | |
| -1 | 738,804,421 |
If you did it right, you will end up with this table:
| 1 | 47 | 137 | 179 | 641 | 6,439 | 8,413 | 24,523 | 30,127 | 87,817 | 114,739 | 1,152,581 | 4,127,399 | 5,392,733 | 15,719,243 | 738,804,421 |
| -1 | -47 | -137 | -179 | -641 | -6,439 | -8,413 | -24,523 | -30,127 | -87,817 | -114,739 | -1,152,581 | -4,127,399 | -5,392,733 | -15,719,243 | -738,804,421 |
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