A:
Positive:
1 x 2537057355 x 5074114779 x 3211465131 x 1936685395 x 642293655 x 3873374903 x 5174510349 x 24515
Negative:
-1 x -253705735-5 x -50741147-79 x -3211465-131 x -1936685-395 x -642293-655 x -387337-4903 x -51745-10349 x -24515
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 253,705,735, 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 | 253,705,735 | |
| -1 | -253,705,735 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 253,705,735.
Example:
1 x 253,705,735 = 253,705,735
and
-1 x -253,705,735 = 253,705,735
Notice both answers equal 253,705,735
With that explanation out of the way, let's continue. Next, we take the number 253,705,735 and divide it by 2:
253,705,735 ÷ 2 = 126,852,867.5
If the quotient is a whole number, then 2 and 126,852,867.5 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 | 253,705,735 | |
| -1 | -253,705,735 |
Now, we try dividing 253,705,735 by 3:
253,705,735 ÷ 3 = 84,568,578.3333
If the quotient is a whole number, then 3 and 84,568,578.3333 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 | 253,705,735 | |
| -1 | -253,705,735 |
Let's try dividing by 4:
253,705,735 ÷ 4 = 63,426,433.75
If the quotient is a whole number, then 4 and 63,426,433.75 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 | 253,705,735 | |
| -1 | 253,705,735 |
If you did it right, you will end up with this table:
| 1 | 5 | 79 | 131 | 395 | 655 | 4,903 | 10,349 | 24,515 | 51,745 | 387,337 | 642,293 | 1,936,685 | 3,211,465 | 50,741,147 | 253,705,735 |
| -1 | -5 | -79 | -131 | -395 | -655 | -4,903 | -10,349 | -24,515 | -51,745 | -387,337 | -642,293 | -1,936,685 | -3,211,465 | -50,741,147 | -253,705,735 |
Here are some more numbers to try:
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