A:
Positive:
1 x 315525111 x 28684117 x 18560347 x 67133187 x 16873359 x 8789517 x 6103799 x 3949
Negative:
-1 x -3155251-11 x -286841-17 x -185603-47 x -67133-187 x -16873-359 x -8789-517 x -6103-799 x -3949
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 3,155,251, 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 | 3,155,251 | |
| -1 | -3,155,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,155,251.
Example:
1 x 3,155,251 = 3,155,251
and
-1 x -3,155,251 = 3,155,251
Notice both answers equal 3,155,251
With that explanation out of the way, let's continue. Next, we take the number 3,155,251 and divide it by 2:
3,155,251 ÷ 2 = 1,577,625.5
If the quotient is a whole number, then 2 and 1,577,625.5 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 | 3,155,251 | |
| -1 | -3,155,251 |
Now, we try dividing 3,155,251 by 3:
3,155,251 ÷ 3 = 1,051,750.3333
If the quotient is a whole number, then 3 and 1,051,750.3333 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 | 3,155,251 | |
| -1 | -3,155,251 |
Let's try dividing by 4:
3,155,251 ÷ 4 = 788,812.75
If the quotient is a whole number, then 4 and 788,812.75 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 | 3,155,251 | |
| -1 | 3,155,251 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 47 | 187 | 359 | 517 | 799 | 3,949 | 6,103 | 8,789 | 16,873 | 67,133 | 185,603 | 286,841 | 3,155,251 |
| -1 | -11 | -17 | -47 | -187 | -359 | -517 | -799 | -3,949 | -6,103 | -8,789 | -16,873 | -67,133 | -185,603 | -286,841 | -3,155,251 |
Here are some more numbers to try:
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