A:
Positive:
1 x 134021455 x 268042959 x 227155181 x 74045251 x 53395295 x 45431905 x 148091255 x 10679
Negative:
-1 x -13402145-5 x -2680429-59 x -227155-181 x -74045-251 x -53395-295 x -45431-905 x -14809-1255 x -10679
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 13,402,145, 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 | 13,402,145 | |
| -1 | -13,402,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,402,145.
Example:
1 x 13,402,145 = 13,402,145
and
-1 x -13,402,145 = 13,402,145
Notice both answers equal 13,402,145
With that explanation out of the way, let's continue. Next, we take the number 13,402,145 and divide it by 2:
13,402,145 ÷ 2 = 6,701,072.5
If the quotient is a whole number, then 2 and 6,701,072.5 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 | 13,402,145 | |
| -1 | -13,402,145 |
Now, we try dividing 13,402,145 by 3:
13,402,145 ÷ 3 = 4,467,381.6667
If the quotient is a whole number, then 3 and 4,467,381.6667 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 | 13,402,145 | |
| -1 | -13,402,145 |
Let's try dividing by 4:
13,402,145 ÷ 4 = 3,350,536.25
If the quotient is a whole number, then 4 and 3,350,536.25 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 | 13,402,145 | |
| -1 | 13,402,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 59 | 181 | 251 | 295 | 905 | 1,255 | 10,679 | 14,809 | 45,431 | 53,395 | 74,045 | 227,155 | 2,680,429 | 13,402,145 |
| -1 | -5 | -59 | -181 | -251 | -295 | -905 | -1,255 | -10,679 | -14,809 | -45,431 | -53,395 | -74,045 | -227,155 | -2,680,429 | -13,402,145 |
Here are some more numbers to try:
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