A:
Positive:
1 x 2812410711 x 255673737 x 76011143 x 654049407 x 69101473 x 594591591 x 176771607 x 17501
Negative:
-1 x -28124107-11 x -2556737-37 x -760111-43 x -654049-407 x -69101-473 x -59459-1591 x -17677-1607 x -17501
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 28,124,107, 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 | 28,124,107 | |
| -1 | -28,124,107 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,124,107.
Example:
1 x 28,124,107 = 28,124,107
and
-1 x -28,124,107 = 28,124,107
Notice both answers equal 28,124,107
With that explanation out of the way, let's continue. Next, we take the number 28,124,107 and divide it by 2:
28,124,107 ÷ 2 = 14,062,053.5
If the quotient is a whole number, then 2 and 14,062,053.5 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 | 28,124,107 | |
| -1 | -28,124,107 |
Now, we try dividing 28,124,107 by 3:
28,124,107 ÷ 3 = 9,374,702.3333
If the quotient is a whole number, then 3 and 9,374,702.3333 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 | 28,124,107 | |
| -1 | -28,124,107 |
Let's try dividing by 4:
28,124,107 ÷ 4 = 7,031,026.75
If the quotient is a whole number, then 4 and 7,031,026.75 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 | 28,124,107 | |
| -1 | 28,124,107 |
If you did it right, you will end up with this table:
| 1 | 11 | 37 | 43 | 407 | 473 | 1,591 | 1,607 | 17,501 | 17,677 | 59,459 | 69,101 | 654,049 | 760,111 | 2,556,737 | 28,124,107 |
| -1 | -11 | -37 | -43 | -407 | -473 | -1,591 | -1,607 | -17,501 | -17,677 | -59,459 | -69,101 | -654,049 | -760,111 | -2,556,737 | -28,124,107 |
Here are some more numbers to try:
Try the factor calculator