A:
Positive:
1 x 1335065055 x 2670130111 x 1213695555 x 2427391181 x 737605905 x 1475211991 x 670559955 x 13411
Negative:
-1 x -133506505-5 x -26701301-11 x -12136955-55 x -2427391-181 x -737605-905 x -147521-1991 x -67055-9955 x -13411
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 133,506,505, 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 | 133,506,505 | |
| -1 | -133,506,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,506,505.
Example:
1 x 133,506,505 = 133,506,505
and
-1 x -133,506,505 = 133,506,505
Notice both answers equal 133,506,505
With that explanation out of the way, let's continue. Next, we take the number 133,506,505 and divide it by 2:
133,506,505 ÷ 2 = 66,753,252.5
If the quotient is a whole number, then 2 and 66,753,252.5 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 | 133,506,505 | |
| -1 | -133,506,505 |
Now, we try dividing 133,506,505 by 3:
133,506,505 ÷ 3 = 44,502,168.3333
If the quotient is a whole number, then 3 and 44,502,168.3333 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 | 133,506,505 | |
| -1 | -133,506,505 |
Let's try dividing by 4:
133,506,505 ÷ 4 = 33,376,626.25
If the quotient is a whole number, then 4 and 33,376,626.25 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 | 133,506,505 | |
| -1 | 133,506,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 181 | 905 | 1,991 | 9,955 | 13,411 | 67,055 | 147,521 | 737,605 | 2,427,391 | 12,136,955 | 26,701,301 | 133,506,505 |
| -1 | -5 | -11 | -55 | -181 | -905 | -1,991 | -9,955 | -13,411 | -67,055 | -147,521 | -737,605 | -2,427,391 | -12,136,955 | -26,701,301 | -133,506,505 |
Here are some more numbers to try:
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