A:
Positive:
1 x 3120548455 x 6241096967 x 4657535191 x 1633795335 x 931507955 x 3267594877 x 6398512797 x 24385
Negative:
-1 x -312054845-5 x -62410969-67 x -4657535-191 x -1633795-335 x -931507-955 x -326759-4877 x -63985-12797 x -24385
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 312,054,845, 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 | 312,054,845 | |
| -1 | -312,054,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 312,054,845.
Example:
1 x 312,054,845 = 312,054,845
and
-1 x -312,054,845 = 312,054,845
Notice both answers equal 312,054,845
With that explanation out of the way, let's continue. Next, we take the number 312,054,845 and divide it by 2:
312,054,845 ÷ 2 = 156,027,422.5
If the quotient is a whole number, then 2 and 156,027,422.5 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 | 312,054,845 | |
| -1 | -312,054,845 |
Now, we try dividing 312,054,845 by 3:
312,054,845 ÷ 3 = 104,018,281.6667
If the quotient is a whole number, then 3 and 104,018,281.6667 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 | 312,054,845 | |
| -1 | -312,054,845 |
Let's try dividing by 4:
312,054,845 ÷ 4 = 78,013,711.25
If the quotient is a whole number, then 4 and 78,013,711.25 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 | 312,054,845 | |
| -1 | 312,054,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 191 | 335 | 955 | 4,877 | 12,797 | 24,385 | 63,985 | 326,759 | 931,507 | 1,633,795 | 4,657,535 | 62,410,969 | 312,054,845 |
| -1 | -5 | -67 | -191 | -335 | -955 | -4,877 | -12,797 | -24,385 | -63,985 | -326,759 | -931,507 | -1,633,795 | -4,657,535 | -62,410,969 | -312,054,845 |
Here are some more numbers to try:
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