A:
Positive:
1 x 51557165337 x 13934369113 x 4562581317 x 1626409389 x 13253774181 x 12331311729 x 4395714393 x 35821
Negative:
-1 x -515571653-37 x -13934369-113 x -4562581-317 x -1626409-389 x -1325377-4181 x -123313-11729 x -43957-14393 x -35821
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 515,571,653, 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 | 515,571,653 | |
| -1 | -515,571,653 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 515,571,653.
Example:
1 x 515,571,653 = 515,571,653
and
-1 x -515,571,653 = 515,571,653
Notice both answers equal 515,571,653
With that explanation out of the way, let's continue. Next, we take the number 515,571,653 and divide it by 2:
515,571,653 ÷ 2 = 257,785,826.5
If the quotient is a whole number, then 2 and 257,785,826.5 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 | 515,571,653 | |
| -1 | -515,571,653 |
Now, we try dividing 515,571,653 by 3:
515,571,653 ÷ 3 = 171,857,217.6667
If the quotient is a whole number, then 3 and 171,857,217.6667 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 | 515,571,653 | |
| -1 | -515,571,653 |
Let's try dividing by 4:
515,571,653 ÷ 4 = 128,892,913.25
If the quotient is a whole number, then 4 and 128,892,913.25 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 | 515,571,653 | |
| -1 | 515,571,653 |
If you did it right, you will end up with this table:
| 1 | 37 | 113 | 317 | 389 | 4,181 | 11,729 | 14,393 | 35,821 | 43,957 | 123,313 | 1,325,377 | 1,626,409 | 4,562,581 | 13,934,369 | 515,571,653 |
| -1 | -37 | -113 | -317 | -389 | -4,181 | -11,729 | -14,393 | -35,821 | -43,957 | -123,313 | -1,325,377 | -1,626,409 | -4,562,581 | -13,934,369 | -515,571,653 |
Here are some more numbers to try:
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