A:
Positive:
1 x 2022200155 x 4044400317 x 1189529585 x 237905989 x 2272135445 x 4544271513 x 1336557565 x 26731
Negative:
-1 x -202220015-5 x -40444003-17 x -11895295-85 x -2379059-89 x -2272135-445 x -454427-1513 x -133655-7565 x -26731
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 202,220,015, 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 | 202,220,015 | |
| -1 | -202,220,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 202,220,015.
Example:
1 x 202,220,015 = 202,220,015
and
-1 x -202,220,015 = 202,220,015
Notice both answers equal 202,220,015
With that explanation out of the way, let's continue. Next, we take the number 202,220,015 and divide it by 2:
202,220,015 ÷ 2 = 101,110,007.5
If the quotient is a whole number, then 2 and 101,110,007.5 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 | 202,220,015 | |
| -1 | -202,220,015 |
Now, we try dividing 202,220,015 by 3:
202,220,015 ÷ 3 = 67,406,671.6667
If the quotient is a whole number, then 3 and 67,406,671.6667 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 | 202,220,015 | |
| -1 | -202,220,015 |
Let's try dividing by 4:
202,220,015 ÷ 4 = 50,555,003.75
If the quotient is a whole number, then 4 and 50,555,003.75 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 | 202,220,015 | |
| -1 | 202,220,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 89 | 445 | 1,513 | 7,565 | 26,731 | 133,655 | 454,427 | 2,272,135 | 2,379,059 | 11,895,295 | 40,444,003 | 202,220,015 |
| -1 | -5 | -17 | -85 | -89 | -445 | -1,513 | -7,565 | -26,731 | -133,655 | -454,427 | -2,272,135 | -2,379,059 | -11,895,295 | -40,444,003 | -202,220,015 |
Here are some more numbers to try:
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