A:
Positive:
1 x 720273477 x 1028962119 x 3790913133 x 541559337 x 2137311607 x 448212359 x 305336403 x 11249
Negative:
-1 x -72027347-7 x -10289621-19 x -3790913-133 x -541559-337 x -213731-1607 x -44821-2359 x -30533-6403 x -11249
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 72,027,347, 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 | 72,027,347 | |
| -1 | -72,027,347 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,027,347.
Example:
1 x 72,027,347 = 72,027,347
and
-1 x -72,027,347 = 72,027,347
Notice both answers equal 72,027,347
With that explanation out of the way, let's continue. Next, we take the number 72,027,347 and divide it by 2:
72,027,347 ÷ 2 = 36,013,673.5
If the quotient is a whole number, then 2 and 36,013,673.5 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 | 72,027,347 | |
| -1 | -72,027,347 |
Now, we try dividing 72,027,347 by 3:
72,027,347 ÷ 3 = 24,009,115.6667
If the quotient is a whole number, then 3 and 24,009,115.6667 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 | 72,027,347 | |
| -1 | -72,027,347 |
Let's try dividing by 4:
72,027,347 ÷ 4 = 18,006,836.75
If the quotient is a whole number, then 4 and 18,006,836.75 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 | 72,027,347 | |
| -1 | 72,027,347 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 337 | 1,607 | 2,359 | 6,403 | 11,249 | 30,533 | 44,821 | 213,731 | 541,559 | 3,790,913 | 10,289,621 | 72,027,347 |
| -1 | -7 | -19 | -133 | -337 | -1,607 | -2,359 | -6,403 | -11,249 | -30,533 | -44,821 | -213,731 | -541,559 | -3,790,913 | -10,289,621 | -72,027,347 |
Here are some more numbers to try:
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