A:
Positive:
1 x 31275043967 x 4667917101 x 3096539113 x 2767703409 x 7646716767 x 462177571 x 4130911413 x 27403
Negative:
-1 x -312750439-67 x -4667917-101 x -3096539-113 x -2767703-409 x -764671-6767 x -46217-7571 x -41309-11413 x -27403
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 312,750,439, 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 | 312,750,439 | |
| -1 | -312,750,439 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 312,750,439.
Example:
1 x 312,750,439 = 312,750,439
and
-1 x -312,750,439 = 312,750,439
Notice both answers equal 312,750,439
With that explanation out of the way, let's continue. Next, we take the number 312,750,439 and divide it by 2:
312,750,439 ÷ 2 = 156,375,219.5
If the quotient is a whole number, then 2 and 156,375,219.5 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 | 312,750,439 | |
| -1 | -312,750,439 |
Now, we try dividing 312,750,439 by 3:
312,750,439 ÷ 3 = 104,250,146.3333
If the quotient is a whole number, then 3 and 104,250,146.3333 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 | 312,750,439 | |
| -1 | -312,750,439 |
Let's try dividing by 4:
312,750,439 ÷ 4 = 78,187,609.75
If the quotient is a whole number, then 4 and 78,187,609.75 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 | 312,750,439 | |
| -1 | 312,750,439 |
If you did it right, you will end up with this table:
| 1 | 67 | 101 | 113 | 409 | 6,767 | 7,571 | 11,413 | 27,403 | 41,309 | 46,217 | 764,671 | 2,767,703 | 3,096,539 | 4,667,917 | 312,750,439 |
| -1 | -67 | -101 | -113 | -409 | -6,767 | -7,571 | -11,413 | -27,403 | -41,309 | -46,217 | -764,671 | -2,767,703 | -3,096,539 | -4,667,917 | -312,750,439 |
Here are some more numbers to try:
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