A:
Positive:
1 x 39572455 x 79144953 x 74665109 x 36305137 x 28885265 x 14933545 x 7261685 x 5777
Negative:
-1 x -3957245-5 x -791449-53 x -74665-109 x -36305-137 x -28885-265 x -14933-545 x -7261-685 x -5777
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 3,957,245, 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 | 3,957,245 | |
| -1 | -3,957,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,957,245.
Example:
1 x 3,957,245 = 3,957,245
and
-1 x -3,957,245 = 3,957,245
Notice both answers equal 3,957,245
With that explanation out of the way, let's continue. Next, we take the number 3,957,245 and divide it by 2:
3,957,245 ÷ 2 = 1,978,622.5
If the quotient is a whole number, then 2 and 1,978,622.5 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 | 3,957,245 | |
| -1 | -3,957,245 |
Now, we try dividing 3,957,245 by 3:
3,957,245 ÷ 3 = 1,319,081.6667
If the quotient is a whole number, then 3 and 1,319,081.6667 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 | 3,957,245 | |
| -1 | -3,957,245 |
Let's try dividing by 4:
3,957,245 ÷ 4 = 989,311.25
If the quotient is a whole number, then 4 and 989,311.25 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 | 3,957,245 | |
| -1 | 3,957,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 109 | 137 | 265 | 545 | 685 | 5,777 | 7,261 | 14,933 | 28,885 | 36,305 | 74,665 | 791,449 | 3,957,245 |
| -1 | -5 | -53 | -109 | -137 | -265 | -545 | -685 | -5,777 | -7,261 | -14,933 | -28,885 | -36,305 | -74,665 | -791,449 | -3,957,245 |
Here are some more numbers to try:
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