A:
Positive:
1 x 361520913 x 27809323 x 157183107 x 33787113 x 31993299 x 120911391 x 25991469 x 2461
Negative:
-1 x -3615209-13 x -278093-23 x -157183-107 x -33787-113 x -31993-299 x -12091-1391 x -2599-1469 x -2461
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 3,615,209, 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 | 3,615,209 | |
| -1 | -3,615,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,615,209.
Example:
1 x 3,615,209 = 3,615,209
and
-1 x -3,615,209 = 3,615,209
Notice both answers equal 3,615,209
With that explanation out of the way, let's continue. Next, we take the number 3,615,209 and divide it by 2:
3,615,209 ÷ 2 = 1,807,604.5
If the quotient is a whole number, then 2 and 1,807,604.5 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 | 3,615,209 | |
| -1 | -3,615,209 |
Now, we try dividing 3,615,209 by 3:
3,615,209 ÷ 3 = 1,205,069.6667
If the quotient is a whole number, then 3 and 1,205,069.6667 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 | 3,615,209 | |
| -1 | -3,615,209 |
Let's try dividing by 4:
3,615,209 ÷ 4 = 903,802.25
If the quotient is a whole number, then 4 and 903,802.25 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 | 3,615,209 | |
| -1 | 3,615,209 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 107 | 113 | 299 | 1,391 | 1,469 | 2,461 | 2,599 | 12,091 | 31,993 | 33,787 | 157,183 | 278,093 | 3,615,209 |
| -1 | -13 | -23 | -107 | -113 | -299 | -1,391 | -1,469 | -2,461 | -2,599 | -12,091 | -31,993 | -33,787 | -157,183 | -278,093 | -3,615,209 |
Here are some more numbers to try:
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