A:
Positive:
1 x 791189311 x 71926341 x 19297353 x 149281331 x 23903451 x 17543583 x 135712173 x 3641
Negative:
-1 x -7911893-11 x -719263-41 x -192973-53 x -149281-331 x -23903-451 x -17543-583 x -13571-2173 x -3641
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 7,911,893, 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 | 7,911,893 | |
| -1 | -7,911,893 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,911,893.
Example:
1 x 7,911,893 = 7,911,893
and
-1 x -7,911,893 = 7,911,893
Notice both answers equal 7,911,893
With that explanation out of the way, let's continue. Next, we take the number 7,911,893 and divide it by 2:
7,911,893 ÷ 2 = 3,955,946.5
If the quotient is a whole number, then 2 and 3,955,946.5 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 | 7,911,893 | |
| -1 | -7,911,893 |
Now, we try dividing 7,911,893 by 3:
7,911,893 ÷ 3 = 2,637,297.6667
If the quotient is a whole number, then 3 and 2,637,297.6667 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 | 7,911,893 | |
| -1 | -7,911,893 |
Let's try dividing by 4:
7,911,893 ÷ 4 = 1,977,973.25
If the quotient is a whole number, then 4 and 1,977,973.25 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 | 7,911,893 | |
| -1 | 7,911,893 |
If you did it right, you will end up with this table:
| 1 | 11 | 41 | 53 | 331 | 451 | 583 | 2,173 | 3,641 | 13,571 | 17,543 | 23,903 | 149,281 | 192,973 | 719,263 | 7,911,893 |
| -1 | -11 | -41 | -53 | -331 | -451 | -583 | -2,173 | -3,641 | -13,571 | -17,543 | -23,903 | -149,281 | -192,973 | -719,263 | -7,911,893 |
Here are some more numbers to try:
Try the factor calculator