A:
Positive:
1 x 1332304197 x 1903291779 x 168646189 x 1496971553 x 240923623 x 2138532707 x 492177031 x 18949
Negative:
-1 x -133230419-7 x -19032917-79 x -1686461-89 x -1496971-553 x -240923-623 x -213853-2707 x -49217-7031 x -18949
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 133,230,419, 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 | 133,230,419 | |
| -1 | -133,230,419 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,230,419.
Example:
1 x 133,230,419 = 133,230,419
and
-1 x -133,230,419 = 133,230,419
Notice both answers equal 133,230,419
With that explanation out of the way, let's continue. Next, we take the number 133,230,419 and divide it by 2:
133,230,419 ÷ 2 = 66,615,209.5
If the quotient is a whole number, then 2 and 66,615,209.5 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 | 133,230,419 | |
| -1 | -133,230,419 |
Now, we try dividing 133,230,419 by 3:
133,230,419 ÷ 3 = 44,410,139.6667
If the quotient is a whole number, then 3 and 44,410,139.6667 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 | 133,230,419 | |
| -1 | -133,230,419 |
Let's try dividing by 4:
133,230,419 ÷ 4 = 33,307,604.75
If the quotient is a whole number, then 4 and 33,307,604.75 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 | 133,230,419 | |
| -1 | 133,230,419 |
If you did it right, you will end up with this table:
| 1 | 7 | 79 | 89 | 553 | 623 | 2,707 | 7,031 | 18,949 | 49,217 | 213,853 | 240,923 | 1,496,971 | 1,686,461 | 19,032,917 | 133,230,419 |
| -1 | -7 | -79 | -89 | -553 | -623 | -2,707 | -7,031 | -18,949 | -49,217 | -213,853 | -240,923 | -1,496,971 | -1,686,461 | -19,032,917 | -133,230,419 |
Here are some more numbers to try:
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