A:
Positive:
1 x 7358063911 x 668914931 x 2373569151 x 487289341 x 2157791429 x 514911661 x 442994681 x 15719
Negative:
-1 x -73580639-11 x -6689149-31 x -2373569-151 x -487289-341 x -215779-1429 x -51491-1661 x -44299-4681 x -15719
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 73,580,639, 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 | 73,580,639 | |
| -1 | -73,580,639 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 73,580,639.
Example:
1 x 73,580,639 = 73,580,639
and
-1 x -73,580,639 = 73,580,639
Notice both answers equal 73,580,639
With that explanation out of the way, let's continue. Next, we take the number 73,580,639 and divide it by 2:
73,580,639 ÷ 2 = 36,790,319.5
If the quotient is a whole number, then 2 and 36,790,319.5 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 | 73,580,639 | |
| -1 | -73,580,639 |
Now, we try dividing 73,580,639 by 3:
73,580,639 ÷ 3 = 24,526,879.6667
If the quotient is a whole number, then 3 and 24,526,879.6667 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 | 73,580,639 | |
| -1 | -73,580,639 |
Let's try dividing by 4:
73,580,639 ÷ 4 = 18,395,159.75
If the quotient is a whole number, then 4 and 18,395,159.75 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 | 73,580,639 | |
| -1 | 73,580,639 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 151 | 341 | 1,429 | 1,661 | 4,681 | 15,719 | 44,299 | 51,491 | 215,779 | 487,289 | 2,373,569 | 6,689,149 | 73,580,639 |
| -1 | -11 | -31 | -151 | -341 | -1,429 | -1,661 | -4,681 | -15,719 | -44,299 | -51,491 | -215,779 | -487,289 | -2,373,569 | -6,689,149 | -73,580,639 |
Here are some more numbers to try:
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