A:
Positive:
1 x 738199917 x 10545713101 x 730891193 x 382487541 x 136451707 x 1044131351 x 546413787 x 19493
Negative:
-1 x -73819991-7 x -10545713-101 x -730891-193 x -382487-541 x -136451-707 x -104413-1351 x -54641-3787 x -19493
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 73,819,991, 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 | 73,819,991 | |
| -1 | -73,819,991 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 73,819,991.
Example:
1 x 73,819,991 = 73,819,991
and
-1 x -73,819,991 = 73,819,991
Notice both answers equal 73,819,991
With that explanation out of the way, let's continue. Next, we take the number 73,819,991 and divide it by 2:
73,819,991 ÷ 2 = 36,909,995.5
If the quotient is a whole number, then 2 and 36,909,995.5 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 | 73,819,991 | |
| -1 | -73,819,991 |
Now, we try dividing 73,819,991 by 3:
73,819,991 ÷ 3 = 24,606,663.6667
If the quotient is a whole number, then 3 and 24,606,663.6667 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 | 73,819,991 | |
| -1 | -73,819,991 |
Let's try dividing by 4:
73,819,991 ÷ 4 = 18,454,997.75
If the quotient is a whole number, then 4 and 18,454,997.75 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 | 73,819,991 | |
| -1 | 73,819,991 |
If you did it right, you will end up with this table:
| 1 | 7 | 101 | 193 | 541 | 707 | 1,351 | 3,787 | 19,493 | 54,641 | 104,413 | 136,451 | 382,487 | 730,891 | 10,545,713 | 73,819,991 |
| -1 | -7 | -101 | -193 | -541 | -707 | -1,351 | -3,787 | -19,493 | -54,641 | -104,413 | -136,451 | -382,487 | -730,891 | -10,545,713 | -73,819,991 |
Here are some more numbers to try:
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