A:
Positive:
1 x 78508855 x 15701777 x 112155535 x 22431141 x 191485205 x 38297287 x 273551435 x 5471
Negative:
-1 x -7850885-5 x -1570177-7 x -1121555-35 x -224311-41 x -191485-205 x -38297-287 x -27355-1435 x -5471
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 7,850,885, 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 | 7,850,885 | |
| -1 | -7,850,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,850,885.
Example:
1 x 7,850,885 = 7,850,885
and
-1 x -7,850,885 = 7,850,885
Notice both answers equal 7,850,885
With that explanation out of the way, let's continue. Next, we take the number 7,850,885 and divide it by 2:
7,850,885 ÷ 2 = 3,925,442.5
If the quotient is a whole number, then 2 and 3,925,442.5 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 | 7,850,885 | |
| -1 | -7,850,885 |
Now, we try dividing 7,850,885 by 3:
7,850,885 ÷ 3 = 2,616,961.6667
If the quotient is a whole number, then 3 and 2,616,961.6667 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 | 7,850,885 | |
| -1 | -7,850,885 |
Let's try dividing by 4:
7,850,885 ÷ 4 = 1,962,721.25
If the quotient is a whole number, then 4 and 1,962,721.25 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 | 7,850,885 | |
| -1 | 7,850,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 5,471 | 27,355 | 38,297 | 191,485 | 224,311 | 1,121,555 | 1,570,177 | 7,850,885 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -5,471 | -27,355 | -38,297 | -191,485 | -224,311 | -1,121,555 | -1,570,177 | -7,850,885 |
Here are some more numbers to try:
Try the factor calculator