A:
Positive:
1 x 24788355 x 49576719 x 13046595 x 2609397 x 25555269 x 9215485 x 51111345 x 1843
Negative:
-1 x -2478835-5 x -495767-19 x -130465-95 x -26093-97 x -25555-269 x -9215-485 x -5111-1345 x -1843
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 2,478,835, 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 | 2,478,835 | |
| -1 | -2,478,835 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,478,835.
Example:
1 x 2,478,835 = 2,478,835
and
-1 x -2,478,835 = 2,478,835
Notice both answers equal 2,478,835
With that explanation out of the way, let's continue. Next, we take the number 2,478,835 and divide it by 2:
2,478,835 ÷ 2 = 1,239,417.5
If the quotient is a whole number, then 2 and 1,239,417.5 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 | 2,478,835 | |
| -1 | -2,478,835 |
Now, we try dividing 2,478,835 by 3:
2,478,835 ÷ 3 = 826,278.3333
If the quotient is a whole number, then 3 and 826,278.3333 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 | 2,478,835 | |
| -1 | -2,478,835 |
Let's try dividing by 4:
2,478,835 ÷ 4 = 619,708.75
If the quotient is a whole number, then 4 and 619,708.75 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 | 2,478,835 | |
| -1 | 2,478,835 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 97 | 269 | 485 | 1,345 | 1,843 | 5,111 | 9,215 | 25,555 | 26,093 | 130,465 | 495,767 | 2,478,835 |
| -1 | -5 | -19 | -95 | -97 | -269 | -485 | -1,345 | -1,843 | -5,111 | -9,215 | -25,555 | -26,093 | -130,465 | -495,767 | -2,478,835 |
Here are some more numbers to try:
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