A:
Positive:
1 x 79036255 x 158072525 x 31614553 x 149125125 x 63229265 x 298251193 x 66251325 x 5965
Negative:
-1 x -7903625-5 x -1580725-25 x -316145-53 x -149125-125 x -63229-265 x -29825-1193 x -6625-1325 x -5965
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 7,903,625, 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 | 7,903,625 | |
| -1 | -7,903,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,903,625.
Example:
1 x 7,903,625 = 7,903,625
and
-1 x -7,903,625 = 7,903,625
Notice both answers equal 7,903,625
With that explanation out of the way, let's continue. Next, we take the number 7,903,625 and divide it by 2:
7,903,625 ÷ 2 = 3,951,812.5
If the quotient is a whole number, then 2 and 3,951,812.5 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 | 7,903,625 | |
| -1 | -7,903,625 |
Now, we try dividing 7,903,625 by 3:
7,903,625 ÷ 3 = 2,634,541.6667
If the quotient is a whole number, then 3 and 2,634,541.6667 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 | 7,903,625 | |
| -1 | -7,903,625 |
Let's try dividing by 4:
7,903,625 ÷ 4 = 1,975,906.25
If the quotient is a whole number, then 4 and 1,975,906.25 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 | 7,903,625 | |
| -1 | 7,903,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 53 | 125 | 265 | 1,193 | 1,325 | 5,965 | 6,625 | 29,825 | 63,229 | 149,125 | 316,145 | 1,580,725 | 7,903,625 |
| -1 | -5 | -25 | -53 | -125 | -265 | -1,193 | -1,325 | -5,965 | -6,625 | -29,825 | -63,229 | -149,125 | -316,145 | -1,580,725 | -7,903,625 |
Here are some more numbers to try:
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