A:
Positive:
1 x 132003955 x 264007913 x 101541565 x 203083311 x 42445653 x 202151555 x 84893265 x 4043
Negative:
-1 x -13200395-5 x -2640079-13 x -1015415-65 x -203083-311 x -42445-653 x -20215-1555 x -8489-3265 x -4043
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 13,200,395, 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 | 13,200,395 | |
| -1 | -13,200,395 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,200,395.
Example:
1 x 13,200,395 = 13,200,395
and
-1 x -13,200,395 = 13,200,395
Notice both answers equal 13,200,395
With that explanation out of the way, let's continue. Next, we take the number 13,200,395 and divide it by 2:
13,200,395 ÷ 2 = 6,600,197.5
If the quotient is a whole number, then 2 and 6,600,197.5 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 | 13,200,395 | |
| -1 | -13,200,395 |
Now, we try dividing 13,200,395 by 3:
13,200,395 ÷ 3 = 4,400,131.6667
If the quotient is a whole number, then 3 and 4,400,131.6667 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 | 13,200,395 | |
| -1 | -13,200,395 |
Let's try dividing by 4:
13,200,395 ÷ 4 = 3,300,098.75
If the quotient is a whole number, then 4 and 3,300,098.75 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 | 13,200,395 | |
| -1 | 13,200,395 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 311 | 653 | 1,555 | 3,265 | 4,043 | 8,489 | 20,215 | 42,445 | 203,083 | 1,015,415 | 2,640,079 | 13,200,395 |
| -1 | -5 | -13 | -65 | -311 | -653 | -1,555 | -3,265 | -4,043 | -8,489 | -20,215 | -42,445 | -203,083 | -1,015,415 | -2,640,079 | -13,200,395 |
Here are some more numbers to try:
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