A:
Positive:
1 x 134252237 x 191788917 x 789719101 x 132923119 x 112817707 x 189891117 x 120191717 x 7819
Negative:
-1 x -13425223-7 x -1917889-17 x -789719-101 x -132923-119 x -112817-707 x -18989-1117 x -12019-1717 x -7819
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 13,425,223, 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 | 13,425,223 | |
| -1 | -13,425,223 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,425,223.
Example:
1 x 13,425,223 = 13,425,223
and
-1 x -13,425,223 = 13,425,223
Notice both answers equal 13,425,223
With that explanation out of the way, let's continue. Next, we take the number 13,425,223 and divide it by 2:
13,425,223 ÷ 2 = 6,712,611.5
If the quotient is a whole number, then 2 and 6,712,611.5 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 | 13,425,223 | |
| -1 | -13,425,223 |
Now, we try dividing 13,425,223 by 3:
13,425,223 ÷ 3 = 4,475,074.3333
If the quotient is a whole number, then 3 and 4,475,074.3333 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 | 13,425,223 | |
| -1 | -13,425,223 |
Let's try dividing by 4:
13,425,223 ÷ 4 = 3,356,305.75
If the quotient is a whole number, then 4 and 3,356,305.75 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 | 13,425,223 | |
| -1 | 13,425,223 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 101 | 119 | 707 | 1,117 | 1,717 | 7,819 | 12,019 | 18,989 | 112,817 | 132,923 | 789,719 | 1,917,889 | 13,425,223 |
| -1 | -7 | -17 | -101 | -119 | -707 | -1,117 | -1,717 | -7,819 | -12,019 | -18,989 | -112,817 | -132,923 | -789,719 | -1,917,889 | -13,425,223 |
Here are some more numbers to try:
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