A:
Positive:
1 x 24384855 x 4876977 x 34835535 x 6967137 x 6590549 x 49765185 x 13181245 x 9953259 x 9415269 x 90651295 x 18831345 x 1813
Negative:
-1 x -2438485-5 x -487697-7 x -348355-35 x -69671-37 x -65905-49 x -49765-185 x -13181-245 x -9953-259 x -9415-269 x -9065-1295 x -1883-1345 x -1813
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 2,438,485, 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 | 2,438,485 | |
| -1 | -2,438,485 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,438,485.
Example:
1 x 2,438,485 = 2,438,485
and
-1 x -2,438,485 = 2,438,485
Notice both answers equal 2,438,485
With that explanation out of the way, let's continue. Next, we take the number 2,438,485 and divide it by 2:
2,438,485 ÷ 2 = 1,219,242.5
If the quotient is a whole number, then 2 and 1,219,242.5 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 | 2,438,485 | |
| -1 | -2,438,485 |
Now, we try dividing 2,438,485 by 3:
2,438,485 ÷ 3 = 812,828.3333
If the quotient is a whole number, then 3 and 812,828.3333 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 | 2,438,485 | |
| -1 | -2,438,485 |
Let's try dividing by 4:
2,438,485 ÷ 4 = 609,621.25
If the quotient is a whole number, then 4 and 609,621.25 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 | 2,438,485 | |
| -1 | 2,438,485 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 37 | 49 | 185 | 245 | 259 | 269 | 1,295 | 1,345 | 1,813 | 1,883 | 9,065 | 9,415 | 9,953 | 13,181 | 49,765 | 65,905 | 69,671 | 348,355 | 487,697 | 2,438,485 |
| -1 | -5 | -7 | -35 | -37 | -49 | -185 | -245 | -259 | -269 | -1,295 | -1,345 | -1,813 | -1,883 | -9,065 | -9,415 | -9,953 | -13,181 | -49,765 | -65,905 | -69,671 | -348,355 | -487,697 | -2,438,485 |
Here are some more numbers to try:
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