A:
Positive:
1 x 126491955 x 252983913 x 97301523 x 54996565 x 194603115 x 109993299 x 423051495 x 8461
Negative:
-1 x -12649195-5 x -2529839-13 x -973015-23 x -549965-65 x -194603-115 x -109993-299 x -42305-1495 x -8461
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 12,649,195, 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 | 12,649,195 | |
| -1 | -12,649,195 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,649,195.
Example:
1 x 12,649,195 = 12,649,195
and
-1 x -12,649,195 = 12,649,195
Notice both answers equal 12,649,195
With that explanation out of the way, let's continue. Next, we take the number 12,649,195 and divide it by 2:
12,649,195 ÷ 2 = 6,324,597.5
If the quotient is a whole number, then 2 and 6,324,597.5 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 | 12,649,195 | |
| -1 | -12,649,195 |
Now, we try dividing 12,649,195 by 3:
12,649,195 ÷ 3 = 4,216,398.3333
If the quotient is a whole number, then 3 and 4,216,398.3333 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 | 12,649,195 | |
| -1 | -12,649,195 |
Let's try dividing by 4:
12,649,195 ÷ 4 = 3,162,298.75
If the quotient is a whole number, then 4 and 3,162,298.75 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 | 12,649,195 | |
| -1 | 12,649,195 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 8,461 | 42,305 | 109,993 | 194,603 | 549,965 | 973,015 | 2,529,839 | 12,649,195 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -8,461 | -42,305 | -109,993 | -194,603 | -549,965 | -973,015 | -2,529,839 | -12,649,195 |
Here are some more numbers to try:
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