A:
Positive:
1 x 1275324713 x 98101917 x 75019123 x 554489169 x 75463193 x 66079221 x 57707299 x 42653391 x 326172509 x 50832873 x 44393281 x 3887
Negative:
-1 x -12753247-13 x -981019-17 x -750191-23 x -554489-169 x -75463-193 x -66079-221 x -57707-299 x -42653-391 x -32617-2509 x -5083-2873 x -4439-3281 x -3887
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 12,753,247, 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 | 12,753,247 | |
| -1 | -12,753,247 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,753,247.
Example:
1 x 12,753,247 = 12,753,247
and
-1 x -12,753,247 = 12,753,247
Notice both answers equal 12,753,247
With that explanation out of the way, let's continue. Next, we take the number 12,753,247 and divide it by 2:
12,753,247 ÷ 2 = 6,376,623.5
If the quotient is a whole number, then 2 and 6,376,623.5 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 | 12,753,247 | |
| -1 | -12,753,247 |
Now, we try dividing 12,753,247 by 3:
12,753,247 ÷ 3 = 4,251,082.3333
If the quotient is a whole number, then 3 and 4,251,082.3333 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 | 12,753,247 | |
| -1 | -12,753,247 |
Let's try dividing by 4:
12,753,247 ÷ 4 = 3,188,311.75
If the quotient is a whole number, then 4 and 3,188,311.75 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 | 12,753,247 | |
| -1 | 12,753,247 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 23 | 169 | 193 | 221 | 299 | 391 | 2,509 | 2,873 | 3,281 | 3,887 | 4,439 | 5,083 | 32,617 | 42,653 | 57,707 | 66,079 | 75,463 | 554,489 | 750,191 | 981,019 | 12,753,247 |
| -1 | -13 | -17 | -23 | -169 | -193 | -221 | -299 | -391 | -2,509 | -2,873 | -3,281 | -3,887 | -4,439 | -5,083 | -32,617 | -42,653 | -57,707 | -66,079 | -75,463 | -554,489 | -750,191 | -981,019 | -12,753,247 |
Here are some more numbers to try:
Try the factor calculator