A:
Positive:
1 x 317612355 x 635224711 x 288738529 x 109521555 x 577477145 x 219043319 x 995651595 x 19913
Negative:
-1 x -31761235-5 x -6352247-11 x -2887385-29 x -1095215-55 x -577477-145 x -219043-319 x -99565-1595 x -19913
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 31,761,235, 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 | 31,761,235 | |
| -1 | -31,761,235 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,761,235.
Example:
1 x 31,761,235 = 31,761,235
and
-1 x -31,761,235 = 31,761,235
Notice both answers equal 31,761,235
With that explanation out of the way, let's continue. Next, we take the number 31,761,235 and divide it by 2:
31,761,235 ÷ 2 = 15,880,617.5
If the quotient is a whole number, then 2 and 15,880,617.5 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 | 31,761,235 | |
| -1 | -31,761,235 |
Now, we try dividing 31,761,235 by 3:
31,761,235 ÷ 3 = 10,587,078.3333
If the quotient is a whole number, then 3 and 10,587,078.3333 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 | 31,761,235 | |
| -1 | -31,761,235 |
Let's try dividing by 4:
31,761,235 ÷ 4 = 7,940,308.75
If the quotient is a whole number, then 4 and 7,940,308.75 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 | 31,761,235 | |
| -1 | 31,761,235 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 29 | 55 | 145 | 319 | 1,595 | 19,913 | 99,565 | 219,043 | 577,477 | 1,095,215 | 2,887,385 | 6,352,247 | 31,761,235 |
| -1 | -5 | -11 | -29 | -55 | -145 | -319 | -1,595 | -19,913 | -99,565 | -219,043 | -577,477 | -1,095,215 | -2,887,385 | -6,352,247 | -31,761,235 |
Here are some more numbers to try:
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