A:
Positive:
1 x 1021113055 x 2042226137 x 275976573 x 1398785185 x 551953365 x 2797572701 x 378057561 x 13505
Negative:
-1 x -102111305-5 x -20422261-37 x -2759765-73 x -1398785-185 x -551953-365 x -279757-2701 x -37805-7561 x -13505
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 102,111,305, 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 | 102,111,305 | |
| -1 | -102,111,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,111,305.
Example:
1 x 102,111,305 = 102,111,305
and
-1 x -102,111,305 = 102,111,305
Notice both answers equal 102,111,305
With that explanation out of the way, let's continue. Next, we take the number 102,111,305 and divide it by 2:
102,111,305 ÷ 2 = 51,055,652.5
If the quotient is a whole number, then 2 and 51,055,652.5 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 | 102,111,305 | |
| -1 | -102,111,305 |
Now, we try dividing 102,111,305 by 3:
102,111,305 ÷ 3 = 34,037,101.6667
If the quotient is a whole number, then 3 and 34,037,101.6667 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 | 102,111,305 | |
| -1 | -102,111,305 |
Let's try dividing by 4:
102,111,305 ÷ 4 = 25,527,826.25
If the quotient is a whole number, then 4 and 25,527,826.25 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 | 102,111,305 | |
| -1 | 102,111,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 73 | 185 | 365 | 2,701 | 7,561 | 13,505 | 37,805 | 279,757 | 551,953 | 1,398,785 | 2,759,765 | 20,422,261 | 102,111,305 |
| -1 | -5 | -37 | -73 | -185 | -365 | -2,701 | -7,561 | -13,505 | -37,805 | -279,757 | -551,953 | -1,398,785 | -2,759,765 | -20,422,261 | -102,111,305 |
Here are some more numbers to try:
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