A:
Positive:
1 x 7220211713 x 555400943 x 1679119227 x 318071559 x 129163569 x 1268932951 x 244677397 x 9761
Negative:
-1 x -72202117-13 x -5554009-43 x -1679119-227 x -318071-559 x -129163-569 x -126893-2951 x -24467-7397 x -9761
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 72,202,117, 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 | 72,202,117 | |
| -1 | -72,202,117 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,202,117.
Example:
1 x 72,202,117 = 72,202,117
and
-1 x -72,202,117 = 72,202,117
Notice both answers equal 72,202,117
With that explanation out of the way, let's continue. Next, we take the number 72,202,117 and divide it by 2:
72,202,117 ÷ 2 = 36,101,058.5
If the quotient is a whole number, then 2 and 36,101,058.5 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 | 72,202,117 | |
| -1 | -72,202,117 |
Now, we try dividing 72,202,117 by 3:
72,202,117 ÷ 3 = 24,067,372.3333
If the quotient is a whole number, then 3 and 24,067,372.3333 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 | 72,202,117 | |
| -1 | -72,202,117 |
Let's try dividing by 4:
72,202,117 ÷ 4 = 18,050,529.25
If the quotient is a whole number, then 4 and 18,050,529.25 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 | 72,202,117 | |
| -1 | 72,202,117 |
If you did it right, you will end up with this table:
| 1 | 13 | 43 | 227 | 559 | 569 | 2,951 | 7,397 | 9,761 | 24,467 | 126,893 | 129,163 | 318,071 | 1,679,119 | 5,554,009 | 72,202,117 |
| -1 | -13 | -43 | -227 | -559 | -569 | -2,951 | -7,397 | -9,761 | -24,467 | -126,893 | -129,163 | -318,071 | -1,679,119 | -5,554,009 | -72,202,117 |
Here are some more numbers to try:
Try the factor calculator