A:
Positive:
1 x 3456236637 x 4937480911 x 3142033377 x 4488619181 x 19095231267 x 2727891991 x 17359313937 x 24799
Negative:
-1 x -345623663-7 x -49374809-11 x -31420333-77 x -4488619-181 x -1909523-1267 x -272789-1991 x -173593-13937 x -24799
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 345,623,663, 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 | 345,623,663 | |
| -1 | -345,623,663 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 345,623,663.
Example:
1 x 345,623,663 = 345,623,663
and
-1 x -345,623,663 = 345,623,663
Notice both answers equal 345,623,663
With that explanation out of the way, let's continue. Next, we take the number 345,623,663 and divide it by 2:
345,623,663 ÷ 2 = 172,811,831.5
If the quotient is a whole number, then 2 and 172,811,831.5 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 | 345,623,663 | |
| -1 | -345,623,663 |
Now, we try dividing 345,623,663 by 3:
345,623,663 ÷ 3 = 115,207,887.6667
If the quotient is a whole number, then 3 and 115,207,887.6667 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 | 345,623,663 | |
| -1 | -345,623,663 |
Let's try dividing by 4:
345,623,663 ÷ 4 = 86,405,915.75
If the quotient is a whole number, then 4 and 86,405,915.75 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 | 345,623,663 | |
| -1 | 345,623,663 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 181 | 1,267 | 1,991 | 13,937 | 24,799 | 173,593 | 272,789 | 1,909,523 | 4,488,619 | 31,420,333 | 49,374,809 | 345,623,663 |
| -1 | -7 | -11 | -77 | -181 | -1,267 | -1,991 | -13,937 | -24,799 | -173,593 | -272,789 | -1,909,523 | -4,488,619 | -31,420,333 | -49,374,809 | -345,623,663 |
Here are some more numbers to try:
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