A:
Positive:
1 x 9820974723 x 426998929 x 338654373 x 1345339667 x 1472411679 x 584932017 x 486912117 x 46391
Negative:
-1 x -98209747-23 x -4269989-29 x -3386543-73 x -1345339-667 x -147241-1679 x -58493-2017 x -48691-2117 x -46391
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 98,209,747, 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 | 98,209,747 | |
| -1 | -98,209,747 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 98,209,747.
Example:
1 x 98,209,747 = 98,209,747
and
-1 x -98,209,747 = 98,209,747
Notice both answers equal 98,209,747
With that explanation out of the way, let's continue. Next, we take the number 98,209,747 and divide it by 2:
98,209,747 ÷ 2 = 49,104,873.5
If the quotient is a whole number, then 2 and 49,104,873.5 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 | 98,209,747 | |
| -1 | -98,209,747 |
Now, we try dividing 98,209,747 by 3:
98,209,747 ÷ 3 = 32,736,582.3333
If the quotient is a whole number, then 3 and 32,736,582.3333 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 | 98,209,747 | |
| -1 | -98,209,747 |
Let's try dividing by 4:
98,209,747 ÷ 4 = 24,552,436.75
If the quotient is a whole number, then 4 and 24,552,436.75 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 | 98,209,747 | |
| -1 | 98,209,747 |
If you did it right, you will end up with this table:
| 1 | 23 | 29 | 73 | 667 | 1,679 | 2,017 | 2,117 | 46,391 | 48,691 | 58,493 | 147,241 | 1,345,339 | 3,386,543 | 4,269,989 | 98,209,747 |
| -1 | -23 | -29 | -73 | -667 | -1,679 | -2,017 | -2,117 | -46,391 | -48,691 | -58,493 | -147,241 | -1,345,339 | -3,386,543 | -4,269,989 | -98,209,747 |
Here are some more numbers to try:
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