A:
Positive:
1 x 1021258755 x 2042517525 x 408503541 x 2490875125 x 817007205 x 4981751025 x 996355125 x 19927
Negative:
-1 x -102125875-5 x -20425175-25 x -4085035-41 x -2490875-125 x -817007-205 x -498175-1025 x -99635-5125 x -19927
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 102,125,875, 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 | 102,125,875 | |
| -1 | -102,125,875 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,125,875.
Example:
1 x 102,125,875 = 102,125,875
and
-1 x -102,125,875 = 102,125,875
Notice both answers equal 102,125,875
With that explanation out of the way, let's continue. Next, we take the number 102,125,875 and divide it by 2:
102,125,875 ÷ 2 = 51,062,937.5
If the quotient is a whole number, then 2 and 51,062,937.5 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 | 102,125,875 | |
| -1 | -102,125,875 |
Now, we try dividing 102,125,875 by 3:
102,125,875 ÷ 3 = 34,041,958.3333
If the quotient is a whole number, then 3 and 34,041,958.3333 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 | 102,125,875 | |
| -1 | -102,125,875 |
Let's try dividing by 4:
102,125,875 ÷ 4 = 25,531,468.75
If the quotient is a whole number, then 4 and 25,531,468.75 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 | 102,125,875 | |
| -1 | 102,125,875 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 41 | 125 | 205 | 1,025 | 5,125 | 19,927 | 99,635 | 498,175 | 817,007 | 2,490,875 | 4,085,035 | 20,425,175 | 102,125,875 |
| -1 | -5 | -25 | -41 | -125 | -205 | -1,025 | -5,125 | -19,927 | -99,635 | -498,175 | -817,007 | -2,490,875 | -4,085,035 | -20,425,175 | -102,125,875 |
Here are some more numbers to try:
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