A:
Positive:
1 x 78430455 x 15686097 x 112043535 x 224087331 x 23695677 x 115851655 x 47392317 x 3385
Negative:
-1 x -7843045-5 x -1568609-7 x -1120435-35 x -224087-331 x -23695-677 x -11585-1655 x -4739-2317 x -3385
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 7,843,045, 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 | 7,843,045 | |
| -1 | -7,843,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,843,045.
Example:
1 x 7,843,045 = 7,843,045
and
-1 x -7,843,045 = 7,843,045
Notice both answers equal 7,843,045
With that explanation out of the way, let's continue. Next, we take the number 7,843,045 and divide it by 2:
7,843,045 ÷ 2 = 3,921,522.5
If the quotient is a whole number, then 2 and 3,921,522.5 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 | 7,843,045 | |
| -1 | -7,843,045 |
Now, we try dividing 7,843,045 by 3:
7,843,045 ÷ 3 = 2,614,348.3333
If the quotient is a whole number, then 3 and 2,614,348.3333 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 | 7,843,045 | |
| -1 | -7,843,045 |
Let's try dividing by 4:
7,843,045 ÷ 4 = 1,960,761.25
If the quotient is a whole number, then 4 and 1,960,761.25 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 | 7,843,045 | |
| -1 | 7,843,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 331 | 677 | 1,655 | 2,317 | 3,385 | 4,739 | 11,585 | 23,695 | 224,087 | 1,120,435 | 1,568,609 | 7,843,045 |
| -1 | -5 | -7 | -35 | -331 | -677 | -1,655 | -2,317 | -3,385 | -4,739 | -11,585 | -23,695 | -224,087 | -1,120,435 | -1,568,609 | -7,843,045 |
Here are some more numbers to try:
Try the factor calculator