A:
Positive:
1 x 1294245711 x 117658717 x 76132167 x 193171187 x 69211737 x 175611033 x 125291139 x 11363
Negative:
-1 x -12942457-11 x -1176587-17 x -761321-67 x -193171-187 x -69211-737 x -17561-1033 x -12529-1139 x -11363
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 12,942,457, 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 | 12,942,457 | |
| -1 | -12,942,457 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,942,457.
Example:
1 x 12,942,457 = 12,942,457
and
-1 x -12,942,457 = 12,942,457
Notice both answers equal 12,942,457
With that explanation out of the way, let's continue. Next, we take the number 12,942,457 and divide it by 2:
12,942,457 ÷ 2 = 6,471,228.5
If the quotient is a whole number, then 2 and 6,471,228.5 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 | 12,942,457 | |
| -1 | -12,942,457 |
Now, we try dividing 12,942,457 by 3:
12,942,457 ÷ 3 = 4,314,152.3333
If the quotient is a whole number, then 3 and 4,314,152.3333 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 | 12,942,457 | |
| -1 | -12,942,457 |
Let's try dividing by 4:
12,942,457 ÷ 4 = 3,235,614.25
If the quotient is a whole number, then 4 and 3,235,614.25 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 | 12,942,457 | |
| -1 | 12,942,457 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 67 | 187 | 737 | 1,033 | 1,139 | 11,363 | 12,529 | 17,561 | 69,211 | 193,171 | 761,321 | 1,176,587 | 12,942,457 |
| -1 | -11 | -17 | -67 | -187 | -737 | -1,033 | -1,139 | -11,363 | -12,529 | -17,561 | -69,211 | -193,171 | -761,321 | -1,176,587 | -12,942,457 |
Here are some more numbers to try:
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