A:
Positive:
1 x 77041455 x 154082917 x 45318585 x 90637233 x 33065389 x 198051165 x 66131945 x 3961
Negative:
-1 x -7704145-5 x -1540829-17 x -453185-85 x -90637-233 x -33065-389 x -19805-1165 x -6613-1945 x -3961
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 7,704,145, 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 | 7,704,145 | |
| -1 | -7,704,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,704,145.
Example:
1 x 7,704,145 = 7,704,145
and
-1 x -7,704,145 = 7,704,145
Notice both answers equal 7,704,145
With that explanation out of the way, let's continue. Next, we take the number 7,704,145 and divide it by 2:
7,704,145 ÷ 2 = 3,852,072.5
If the quotient is a whole number, then 2 and 3,852,072.5 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 | 7,704,145 | |
| -1 | -7,704,145 |
Now, we try dividing 7,704,145 by 3:
7,704,145 ÷ 3 = 2,568,048.3333
If the quotient is a whole number, then 3 and 2,568,048.3333 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 | 7,704,145 | |
| -1 | -7,704,145 |
Let's try dividing by 4:
7,704,145 ÷ 4 = 1,926,036.25
If the quotient is a whole number, then 4 and 1,926,036.25 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 | 7,704,145 | |
| -1 | 7,704,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 233 | 389 | 1,165 | 1,945 | 3,961 | 6,613 | 19,805 | 33,065 | 90,637 | 453,185 | 1,540,829 | 7,704,145 |
| -1 | -5 | -17 | -85 | -233 | -389 | -1,165 | -1,945 | -3,961 | -6,613 | -19,805 | -33,065 | -90,637 | -453,185 | -1,540,829 | -7,704,145 |
Here are some more numbers to try:
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