A:
Positive:
1 x 78418277 x 112026123 x 34094953 x 147959161 x 48707371 x 21137919 x 85331219 x 6433
Negative:
-1 x -7841827-7 x -1120261-23 x -340949-53 x -147959-161 x -48707-371 x -21137-919 x -8533-1219 x -6433
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 7,841,827, 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 | 7,841,827 | |
| -1 | -7,841,827 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,841,827.
Example:
1 x 7,841,827 = 7,841,827
and
-1 x -7,841,827 = 7,841,827
Notice both answers equal 7,841,827
With that explanation out of the way, let's continue. Next, we take the number 7,841,827 and divide it by 2:
7,841,827 ÷ 2 = 3,920,913.5
If the quotient is a whole number, then 2 and 3,920,913.5 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 | 7,841,827 | |
| -1 | -7,841,827 |
Now, we try dividing 7,841,827 by 3:
7,841,827 ÷ 3 = 2,613,942.3333
If the quotient is a whole number, then 3 and 2,613,942.3333 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 | 7,841,827 | |
| -1 | -7,841,827 |
Let's try dividing by 4:
7,841,827 ÷ 4 = 1,960,456.75
If the quotient is a whole number, then 4 and 1,960,456.75 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 | 7,841,827 | |
| -1 | 7,841,827 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 53 | 161 | 371 | 919 | 1,219 | 6,433 | 8,533 | 21,137 | 48,707 | 147,959 | 340,949 | 1,120,261 | 7,841,827 |
| -1 | -7 | -23 | -53 | -161 | -371 | -919 | -1,219 | -6,433 | -8,533 | -21,137 | -48,707 | -147,959 | -340,949 | -1,120,261 | -7,841,827 |
Here are some more numbers to try:
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