A:
Positive:
1 x 138602455 x 27720497 x 198003535 x 396007107 x 129535535 x 25907749 x 185053701 x 3745
Negative:
-1 x -13860245-5 x -2772049-7 x -1980035-35 x -396007-107 x -129535-535 x -25907-749 x -18505-3701 x -3745
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 13,860,245, 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 | 13,860,245 | |
| -1 | -13,860,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,860,245.
Example:
1 x 13,860,245 = 13,860,245
and
-1 x -13,860,245 = 13,860,245
Notice both answers equal 13,860,245
With that explanation out of the way, let's continue. Next, we take the number 13,860,245 and divide it by 2:
13,860,245 ÷ 2 = 6,930,122.5
If the quotient is a whole number, then 2 and 6,930,122.5 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 | 13,860,245 | |
| -1 | -13,860,245 |
Now, we try dividing 13,860,245 by 3:
13,860,245 ÷ 3 = 4,620,081.6667
If the quotient is a whole number, then 3 and 4,620,081.6667 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 | 13,860,245 | |
| -1 | -13,860,245 |
Let's try dividing by 4:
13,860,245 ÷ 4 = 3,465,061.25
If the quotient is a whole number, then 4 and 3,465,061.25 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 | 13,860,245 | |
| -1 | 13,860,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 107 | 535 | 749 | 3,701 | 3,745 | 18,505 | 25,907 | 129,535 | 396,007 | 1,980,035 | 2,772,049 | 13,860,245 |
| -1 | -5 | -7 | -35 | -107 | -535 | -749 | -3,701 | -3,745 | -18,505 | -25,907 | -129,535 | -396,007 | -1,980,035 | -2,772,049 | -13,860,245 |
Here are some more numbers to try:
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