A:
Positive:
1 x 31341537711 x 2849230761 x 5137957197 x 1590941671 x 4670872167 x 1446312371 x 13218712017 x 26081
Negative:
-1 x -313415377-11 x -28492307-61 x -5137957-197 x -1590941-671 x -467087-2167 x -144631-2371 x -132187-12017 x -26081
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 313,415,377, 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 | 313,415,377 | |
| -1 | -313,415,377 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 313,415,377.
Example:
1 x 313,415,377 = 313,415,377
and
-1 x -313,415,377 = 313,415,377
Notice both answers equal 313,415,377
With that explanation out of the way, let's continue. Next, we take the number 313,415,377 and divide it by 2:
313,415,377 ÷ 2 = 156,707,688.5
If the quotient is a whole number, then 2 and 156,707,688.5 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 | 313,415,377 | |
| -1 | -313,415,377 |
Now, we try dividing 313,415,377 by 3:
313,415,377 ÷ 3 = 104,471,792.3333
If the quotient is a whole number, then 3 and 104,471,792.3333 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 | 313,415,377 | |
| -1 | -313,415,377 |
Let's try dividing by 4:
313,415,377 ÷ 4 = 78,353,844.25
If the quotient is a whole number, then 4 and 78,353,844.25 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 | 313,415,377 | |
| -1 | 313,415,377 |
If you did it right, you will end up with this table:
| 1 | 11 | 61 | 197 | 671 | 2,167 | 2,371 | 12,017 | 26,081 | 132,187 | 144,631 | 467,087 | 1,590,941 | 5,137,957 | 28,492,307 | 313,415,377 |
| -1 | -11 | -61 | -197 | -671 | -2,167 | -2,371 | -12,017 | -26,081 | -132,187 | -144,631 | -467,087 | -1,590,941 | -5,137,957 | -28,492,307 | -313,415,377 |
Here are some more numbers to try:
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