A:
Positive:
1 x 79168255 x 15833657 x 113097519 x 41667525 x 31667335 x 22619595 x 83335133 x 59525175 x 45239475 x 16667665 x 119052381 x 3325
Negative:
-1 x -7916825-5 x -1583365-7 x -1130975-19 x -416675-25 x -316673-35 x -226195-95 x -83335-133 x -59525-175 x -45239-475 x -16667-665 x -11905-2381 x -3325
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 7,916,825, 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 | 7,916,825 | |
| -1 | -7,916,825 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,916,825.
Example:
1 x 7,916,825 = 7,916,825
and
-1 x -7,916,825 = 7,916,825
Notice both answers equal 7,916,825
With that explanation out of the way, let's continue. Next, we take the number 7,916,825 and divide it by 2:
7,916,825 ÷ 2 = 3,958,412.5
If the quotient is a whole number, then 2 and 3,958,412.5 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 | 7,916,825 | |
| -1 | -7,916,825 |
Now, we try dividing 7,916,825 by 3:
7,916,825 ÷ 3 = 2,638,941.6667
If the quotient is a whole number, then 3 and 2,638,941.6667 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 | 7,916,825 | |
| -1 | -7,916,825 |
Let's try dividing by 4:
7,916,825 ÷ 4 = 1,979,206.25
If the quotient is a whole number, then 4 and 1,979,206.25 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 | 7,916,825 | |
| -1 | 7,916,825 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 25 | 35 | 95 | 133 | 175 | 475 | 665 | 2,381 | 3,325 | 11,905 | 16,667 | 45,239 | 59,525 | 83,335 | 226,195 | 316,673 | 416,675 | 1,130,975 | 1,583,365 | 7,916,825 |
| -1 | -5 | -7 | -19 | -25 | -35 | -95 | -133 | -175 | -475 | -665 | -2,381 | -3,325 | -11,905 | -16,667 | -45,239 | -59,525 | -83,335 | -226,195 | -316,673 | -416,675 | -1,130,975 | -1,583,365 | -7,916,825 |
Here are some more numbers to try:
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