A:
Positive:
1 x 13013215767 x 1942271103 x 1263419109 x 1193873173 x 7522096901 x 188577303 x 1781911227 x 11591
Negative:
-1 x -130132157-67 x -1942271-103 x -1263419-109 x -1193873-173 x -752209-6901 x -18857-7303 x -17819-11227 x -11591
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 130,132,157, 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 | 130,132,157 | |
| -1 | -130,132,157 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,132,157.
Example:
1 x 130,132,157 = 130,132,157
and
-1 x -130,132,157 = 130,132,157
Notice both answers equal 130,132,157
With that explanation out of the way, let's continue. Next, we take the number 130,132,157 and divide it by 2:
130,132,157 ÷ 2 = 65,066,078.5
If the quotient is a whole number, then 2 and 65,066,078.5 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 | 130,132,157 | |
| -1 | -130,132,157 |
Now, we try dividing 130,132,157 by 3:
130,132,157 ÷ 3 = 43,377,385.6667
If the quotient is a whole number, then 3 and 43,377,385.6667 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 | 130,132,157 | |
| -1 | -130,132,157 |
Let's try dividing by 4:
130,132,157 ÷ 4 = 32,533,039.25
If the quotient is a whole number, then 4 and 32,533,039.25 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 | 130,132,157 | |
| -1 | 130,132,157 |
If you did it right, you will end up with this table:
| 1 | 67 | 103 | 109 | 173 | 6,901 | 7,303 | 11,227 | 11,591 | 17,819 | 18,857 | 752,209 | 1,193,873 | 1,263,419 | 1,942,271 | 130,132,157 |
| -1 | -67 | -103 | -109 | -173 | -6,901 | -7,303 | -11,227 | -11,591 | -17,819 | -18,857 | -752,209 | -1,193,873 | -1,263,419 | -1,942,271 | -130,132,157 |
Here are some more numbers to try:
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