A:
Positive:
1 x 1271661055 x 2543322111 x 1156055555 x 23121111019 x 1247952269 x 560455095 x 2495911209 x 11345
Negative:
-1 x -127166105-5 x -25433221-11 x -11560555-55 x -2312111-1019 x -124795-2269 x -56045-5095 x -24959-11209 x -11345
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 127,166,105, 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 | 127,166,105 | |
| -1 | -127,166,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 127,166,105.
Example:
1 x 127,166,105 = 127,166,105
and
-1 x -127,166,105 = 127,166,105
Notice both answers equal 127,166,105
With that explanation out of the way, let's continue. Next, we take the number 127,166,105 and divide it by 2:
127,166,105 ÷ 2 = 63,583,052.5
If the quotient is a whole number, then 2 and 63,583,052.5 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 | 127,166,105 | |
| -1 | -127,166,105 |
Now, we try dividing 127,166,105 by 3:
127,166,105 ÷ 3 = 42,388,701.6667
If the quotient is a whole number, then 3 and 42,388,701.6667 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 | 127,166,105 | |
| -1 | -127,166,105 |
Let's try dividing by 4:
127,166,105 ÷ 4 = 31,791,526.25
If the quotient is a whole number, then 4 and 31,791,526.25 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 | 127,166,105 | |
| -1 | 127,166,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 1,019 | 2,269 | 5,095 | 11,209 | 11,345 | 24,959 | 56,045 | 124,795 | 2,312,111 | 11,560,555 | 25,433,221 | 127,166,105 |
| -1 | -5 | -11 | -55 | -1,019 | -2,269 | -5,095 | -11,209 | -11,345 | -24,959 | -56,045 | -124,795 | -2,312,111 | -11,560,555 | -25,433,221 | -127,166,105 |
Here are some more numbers to try:
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