A:
Positive:
1 x 3481458897 x 4973512713 x 2678045391 x 3825779101 x 3446989707 x 4924271313 x 2651539191 x 37879
Negative:
-1 x -348145889-7 x -49735127-13 x -26780453-91 x -3825779-101 x -3446989-707 x -492427-1313 x -265153-9191 x -37879
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 348,145,889, 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 | 348,145,889 | |
| -1 | -348,145,889 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 348,145,889.
Example:
1 x 348,145,889 = 348,145,889
and
-1 x -348,145,889 = 348,145,889
Notice both answers equal 348,145,889
With that explanation out of the way, let's continue. Next, we take the number 348,145,889 and divide it by 2:
348,145,889 ÷ 2 = 174,072,944.5
If the quotient is a whole number, then 2 and 174,072,944.5 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 | 348,145,889 | |
| -1 | -348,145,889 |
Now, we try dividing 348,145,889 by 3:
348,145,889 ÷ 3 = 116,048,629.6667
If the quotient is a whole number, then 3 and 116,048,629.6667 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 | 348,145,889 | |
| -1 | -348,145,889 |
Let's try dividing by 4:
348,145,889 ÷ 4 = 87,036,472.25
If the quotient is a whole number, then 4 and 87,036,472.25 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 | 348,145,889 | |
| -1 | 348,145,889 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 101 | 707 | 1,313 | 9,191 | 37,879 | 265,153 | 492,427 | 3,446,989 | 3,825,779 | 26,780,453 | 49,735,127 | 348,145,889 |
| -1 | -7 | -13 | -91 | -101 | -707 | -1,313 | -9,191 | -37,879 | -265,153 | -492,427 | -3,446,989 | -3,825,779 | -26,780,453 | -49,735,127 | -348,145,889 |
Here are some more numbers to try:
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