A:
Positive:
1 x 310511311 x 28228319 x 16342783 x 37411179 x 17347209 x 14857913 x 34011577 x 1969
Negative:
-1 x -3105113-11 x -282283-19 x -163427-83 x -37411-179 x -17347-209 x -14857-913 x -3401-1577 x -1969
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 3,105,113, 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 | 3,105,113 | |
| -1 | -3,105,113 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,105,113.
Example:
1 x 3,105,113 = 3,105,113
and
-1 x -3,105,113 = 3,105,113
Notice both answers equal 3,105,113
With that explanation out of the way, let's continue. Next, we take the number 3,105,113 and divide it by 2:
3,105,113 ÷ 2 = 1,552,556.5
If the quotient is a whole number, then 2 and 1,552,556.5 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 | 3,105,113 | |
| -1 | -3,105,113 |
Now, we try dividing 3,105,113 by 3:
3,105,113 ÷ 3 = 1,035,037.6667
If the quotient is a whole number, then 3 and 1,035,037.6667 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 | 3,105,113 | |
| -1 | -3,105,113 |
Let's try dividing by 4:
3,105,113 ÷ 4 = 776,278.25
If the quotient is a whole number, then 4 and 776,278.25 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 | 3,105,113 | |
| -1 | 3,105,113 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 83 | 179 | 209 | 913 | 1,577 | 1,969 | 3,401 | 14,857 | 17,347 | 37,411 | 163,427 | 282,283 | 3,105,113 |
| -1 | -11 | -19 | -83 | -179 | -209 | -913 | -1,577 | -1,969 | -3,401 | -14,857 | -17,347 | -37,411 | -163,427 | -282,283 | -3,105,113 |
Here are some more numbers to try:
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