A:
Positive:
1 x 77824677 x 111178111 x 70749753 x 14683977 x 101071371 x 20977583 x 133491907 x 4081
Negative:
-1 x -7782467-7 x -1111781-11 x -707497-53 x -146839-77 x -101071-371 x -20977-583 x -13349-1907 x -4081
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 7,782,467, 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 | 7,782,467 | |
| -1 | -7,782,467 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,782,467.
Example:
1 x 7,782,467 = 7,782,467
and
-1 x -7,782,467 = 7,782,467
Notice both answers equal 7,782,467
With that explanation out of the way, let's continue. Next, we take the number 7,782,467 and divide it by 2:
7,782,467 ÷ 2 = 3,891,233.5
If the quotient is a whole number, then 2 and 3,891,233.5 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 | 7,782,467 | |
| -1 | -7,782,467 |
Now, we try dividing 7,782,467 by 3:
7,782,467 ÷ 3 = 2,594,155.6667
If the quotient is a whole number, then 3 and 2,594,155.6667 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 | 7,782,467 | |
| -1 | -7,782,467 |
Let's try dividing by 4:
7,782,467 ÷ 4 = 1,945,616.75
If the quotient is a whole number, then 4 and 1,945,616.75 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 | 7,782,467 | |
| -1 | 7,782,467 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 53 | 77 | 371 | 583 | 1,907 | 4,081 | 13,349 | 20,977 | 101,071 | 146,839 | 707,497 | 1,111,781 | 7,782,467 |
| -1 | -7 | -11 | -53 | -77 | -371 | -583 | -1,907 | -4,081 | -13,349 | -20,977 | -101,071 | -146,839 | -707,497 | -1,111,781 | -7,782,467 |
Here are some more numbers to try:
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