A:
Positive:
1 x 123708055 x 247416119 x 65109595 x 130219107 x 115615535 x 231231217 x 101652033 x 6085
Negative:
-1 x -12370805-5 x -2474161-19 x -651095-95 x -130219-107 x -115615-535 x -23123-1217 x -10165-2033 x -6085
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 12,370,805, 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 | 12,370,805 | |
| -1 | -12,370,805 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,370,805.
Example:
1 x 12,370,805 = 12,370,805
and
-1 x -12,370,805 = 12,370,805
Notice both answers equal 12,370,805
With that explanation out of the way, let's continue. Next, we take the number 12,370,805 and divide it by 2:
12,370,805 ÷ 2 = 6,185,402.5
If the quotient is a whole number, then 2 and 6,185,402.5 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 | 12,370,805 | |
| -1 | -12,370,805 |
Now, we try dividing 12,370,805 by 3:
12,370,805 ÷ 3 = 4,123,601.6667
If the quotient is a whole number, then 3 and 4,123,601.6667 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 | 12,370,805 | |
| -1 | -12,370,805 |
Let's try dividing by 4:
12,370,805 ÷ 4 = 3,092,701.25
If the quotient is a whole number, then 4 and 3,092,701.25 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 | 12,370,805 | |
| -1 | 12,370,805 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 107 | 535 | 1,217 | 2,033 | 6,085 | 10,165 | 23,123 | 115,615 | 130,219 | 651,095 | 2,474,161 | 12,370,805 |
| -1 | -5 | -19 | -95 | -107 | -535 | -1,217 | -2,033 | -6,085 | -10,165 | -23,123 | -115,615 | -130,219 | -651,095 | -2,474,161 | -12,370,805 |
Here are some more numbers to try:
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