A:
Positive:
1 x 3130010155 x 6260020371 x 4408465355 x 881693617 x 5072951429 x 2190353085 x 1014597145 x 43807
Negative:
-1 x -313001015-5 x -62600203-71 x -4408465-355 x -881693-617 x -507295-1429 x -219035-3085 x -101459-7145 x -43807
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 313,001,015, 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 | 313,001,015 | |
| -1 | -313,001,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 313,001,015.
Example:
1 x 313,001,015 = 313,001,015
and
-1 x -313,001,015 = 313,001,015
Notice both answers equal 313,001,015
With that explanation out of the way, let's continue. Next, we take the number 313,001,015 and divide it by 2:
313,001,015 ÷ 2 = 156,500,507.5
If the quotient is a whole number, then 2 and 156,500,507.5 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 | 313,001,015 | |
| -1 | -313,001,015 |
Now, we try dividing 313,001,015 by 3:
313,001,015 ÷ 3 = 104,333,671.6667
If the quotient is a whole number, then 3 and 104,333,671.6667 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 | 313,001,015 | |
| -1 | -313,001,015 |
Let's try dividing by 4:
313,001,015 ÷ 4 = 78,250,253.75
If the quotient is a whole number, then 4 and 78,250,253.75 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 | 313,001,015 | |
| -1 | 313,001,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 71 | 355 | 617 | 1,429 | 3,085 | 7,145 | 43,807 | 101,459 | 219,035 | 507,295 | 881,693 | 4,408,465 | 62,600,203 | 313,001,015 |
| -1 | -5 | -71 | -355 | -617 | -1,429 | -3,085 | -7,145 | -43,807 | -101,459 | -219,035 | -507,295 | -881,693 | -4,408,465 | -62,600,203 | -313,001,015 |
Here are some more numbers to try:
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