A:
Positive:
1 x 1020431055 x 2040862183 x 1229435131 x 778955415 x 245887655 x 1557911877 x 543659385 x 10873
Negative:
-1 x -102043105-5 x -20408621-83 x -1229435-131 x -778955-415 x -245887-655 x -155791-1877 x -54365-9385 x -10873
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 102,043,105, 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 | 102,043,105 | |
| -1 | -102,043,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,043,105.
Example:
1 x 102,043,105 = 102,043,105
and
-1 x -102,043,105 = 102,043,105
Notice both answers equal 102,043,105
With that explanation out of the way, let's continue. Next, we take the number 102,043,105 and divide it by 2:
102,043,105 ÷ 2 = 51,021,552.5
If the quotient is a whole number, then 2 and 51,021,552.5 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 | 102,043,105 | |
| -1 | -102,043,105 |
Now, we try dividing 102,043,105 by 3:
102,043,105 ÷ 3 = 34,014,368.3333
If the quotient is a whole number, then 3 and 34,014,368.3333 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 | 102,043,105 | |
| -1 | -102,043,105 |
Let's try dividing by 4:
102,043,105 ÷ 4 = 25,510,776.25
If the quotient is a whole number, then 4 and 25,510,776.25 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 | 102,043,105 | |
| -1 | 102,043,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 131 | 415 | 655 | 1,877 | 9,385 | 10,873 | 54,365 | 155,791 | 245,887 | 778,955 | 1,229,435 | 20,408,621 | 102,043,105 |
| -1 | -5 | -83 | -131 | -415 | -655 | -1,877 | -9,385 | -10,873 | -54,365 | -155,791 | -245,887 | -778,955 | -1,229,435 | -20,408,621 | -102,043,105 |
Here are some more numbers to try:
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