A:
Positive:
1 x 1054987455 x 2109974911 x 959079555 x 1918159389 x 2712051945 x 542414279 x 246554931 x 21395
Negative:
-1 x -105498745-5 x -21099749-11 x -9590795-55 x -1918159-389 x -271205-1945 x -54241-4279 x -24655-4931 x -21395
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 105,498,745, 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 | 105,498,745 | |
| -1 | -105,498,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 105,498,745.
Example:
1 x 105,498,745 = 105,498,745
and
-1 x -105,498,745 = 105,498,745
Notice both answers equal 105,498,745
With that explanation out of the way, let's continue. Next, we take the number 105,498,745 and divide it by 2:
105,498,745 ÷ 2 = 52,749,372.5
If the quotient is a whole number, then 2 and 52,749,372.5 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 | 105,498,745 | |
| -1 | -105,498,745 |
Now, we try dividing 105,498,745 by 3:
105,498,745 ÷ 3 = 35,166,248.3333
If the quotient is a whole number, then 3 and 35,166,248.3333 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 | 105,498,745 | |
| -1 | -105,498,745 |
Let's try dividing by 4:
105,498,745 ÷ 4 = 26,374,686.25
If the quotient is a whole number, then 4 and 26,374,686.25 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 | 105,498,745 | |
| -1 | 105,498,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 389 | 1,945 | 4,279 | 4,931 | 21,395 | 24,655 | 54,241 | 271,205 | 1,918,159 | 9,590,795 | 21,099,749 | 105,498,745 |
| -1 | -5 | -11 | -55 | -389 | -1,945 | -4,279 | -4,931 | -21,395 | -24,655 | -54,241 | -271,205 | -1,918,159 | -9,590,795 | -21,099,749 | -105,498,745 |
Here are some more numbers to try:
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