A:
Positive:
1 x 39177255 x 7835457 x 55967525 x 15670935 x 11193561 x 64225175 x 22387305 x 12845367 x 10675427 x 91751525 x 25691835 x 2135
Negative:
-1 x -3917725-5 x -783545-7 x -559675-25 x -156709-35 x -111935-61 x -64225-175 x -22387-305 x -12845-367 x -10675-427 x -9175-1525 x -2569-1835 x -2135
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 3,917,725, 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 | 3,917,725 | |
| -1 | -3,917,725 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,917,725.
Example:
1 x 3,917,725 = 3,917,725
and
-1 x -3,917,725 = 3,917,725
Notice both answers equal 3,917,725
With that explanation out of the way, let's continue. Next, we take the number 3,917,725 and divide it by 2:
3,917,725 ÷ 2 = 1,958,862.5
If the quotient is a whole number, then 2 and 1,958,862.5 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 | 3,917,725 | |
| -1 | -3,917,725 |
Now, we try dividing 3,917,725 by 3:
3,917,725 ÷ 3 = 1,305,908.3333
If the quotient is a whole number, then 3 and 1,305,908.3333 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 | 3,917,725 | |
| -1 | -3,917,725 |
Let's try dividing by 4:
3,917,725 ÷ 4 = 979,431.25
If the quotient is a whole number, then 4 and 979,431.25 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 | 3,917,725 | |
| -1 | 3,917,725 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 61 | 175 | 305 | 367 | 427 | 1,525 | 1,835 | 2,135 | 2,569 | 9,175 | 10,675 | 12,845 | 22,387 | 64,225 | 111,935 | 156,709 | 559,675 | 783,545 | 3,917,725 |
| -1 | -5 | -7 | -25 | -35 | -61 | -175 | -305 | -367 | -427 | -1,525 | -1,835 | -2,135 | -2,569 | -9,175 | -10,675 | -12,845 | -22,387 | -64,225 | -111,935 | -156,709 | -559,675 | -783,545 | -3,917,725 |
Here are some more numbers to try:
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