A:
Positive:
1 x 39679255 x 79358513 x 30522525 x 15871729 x 13682565 x 61045145 x 27365325 x 12209377 x 10525421 x 9425725 x 54731885 x 2105
Negative:
-1 x -3967925-5 x -793585-13 x -305225-25 x -158717-29 x -136825-65 x -61045-145 x -27365-325 x -12209-377 x -10525-421 x -9425-725 x -5473-1885 x -2105
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 3,967,925, 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 | 3,967,925 | |
| -1 | -3,967,925 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,967,925.
Example:
1 x 3,967,925 = 3,967,925
and
-1 x -3,967,925 = 3,967,925
Notice both answers equal 3,967,925
With that explanation out of the way, let's continue. Next, we take the number 3,967,925 and divide it by 2:
3,967,925 ÷ 2 = 1,983,962.5
If the quotient is a whole number, then 2 and 1,983,962.5 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 | 3,967,925 | |
| -1 | -3,967,925 |
Now, we try dividing 3,967,925 by 3:
3,967,925 ÷ 3 = 1,322,641.6667
If the quotient is a whole number, then 3 and 1,322,641.6667 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 | 3,967,925 | |
| -1 | -3,967,925 |
Let's try dividing by 4:
3,967,925 ÷ 4 = 991,981.25
If the quotient is a whole number, then 4 and 991,981.25 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 | 3,967,925 | |
| -1 | 3,967,925 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 29 | 65 | 145 | 325 | 377 | 421 | 725 | 1,885 | 2,105 | 5,473 | 9,425 | 10,525 | 12,209 | 27,365 | 61,045 | 136,825 | 158,717 | 305,225 | 793,585 | 3,967,925 |
| -1 | -5 | -13 | -25 | -29 | -65 | -145 | -325 | -377 | -421 | -725 | -1,885 | -2,105 | -5,473 | -9,425 | -10,525 | -12,209 | -27,365 | -61,045 | -136,825 | -158,717 | -305,225 | -793,585 | -3,967,925 |
Here are some more numbers to try:
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