A:
Positive:
1 x 1221450655 x 244290137 x 1744929523 x 531065535 x 3489859115 x 1062131161 x 758665805 x 151733
Negative:
-1 x -122145065-5 x -24429013-7 x -17449295-23 x -5310655-35 x -3489859-115 x -1062131-161 x -758665-805 x -151733
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 122,145,065, 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 | 122,145,065 | |
| -1 | -122,145,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,145,065.
Example:
1 x 122,145,065 = 122,145,065
and
-1 x -122,145,065 = 122,145,065
Notice both answers equal 122,145,065
With that explanation out of the way, let's continue. Next, we take the number 122,145,065 and divide it by 2:
122,145,065 ÷ 2 = 61,072,532.5
If the quotient is a whole number, then 2 and 61,072,532.5 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 | 122,145,065 | |
| -1 | -122,145,065 |
Now, we try dividing 122,145,065 by 3:
122,145,065 ÷ 3 = 40,715,021.6667
If the quotient is a whole number, then 3 and 40,715,021.6667 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 | 122,145,065 | |
| -1 | -122,145,065 |
Let's try dividing by 4:
122,145,065 ÷ 4 = 30,536,266.25
If the quotient is a whole number, then 4 and 30,536,266.25 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 | 122,145,065 | |
| -1 | 122,145,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 151,733 | 758,665 | 1,062,131 | 3,489,859 | 5,310,655 | 17,449,295 | 24,429,013 | 122,145,065 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -151,733 | -758,665 | -1,062,131 | -3,489,859 | -5,310,655 | -17,449,295 | -24,429,013 | -122,145,065 |
Here are some more numbers to try:
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