A:
Positive:
1 x 1302630855 x 2605261731 x 420203547 x 2771555155 x 840407235 x 5543111457 x 894057285 x 17881
Negative:
-1 x -130263085-5 x -26052617-31 x -4202035-47 x -2771555-155 x -840407-235 x -554311-1457 x -89405-7285 x -17881
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 130,263,085, 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 | 130,263,085 | |
| -1 | -130,263,085 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,263,085.
Example:
1 x 130,263,085 = 130,263,085
and
-1 x -130,263,085 = 130,263,085
Notice both answers equal 130,263,085
With that explanation out of the way, let's continue. Next, we take the number 130,263,085 and divide it by 2:
130,263,085 ÷ 2 = 65,131,542.5
If the quotient is a whole number, then 2 and 65,131,542.5 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 | 130,263,085 | |
| -1 | -130,263,085 |
Now, we try dividing 130,263,085 by 3:
130,263,085 ÷ 3 = 43,421,028.3333
If the quotient is a whole number, then 3 and 43,421,028.3333 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 | 130,263,085 | |
| -1 | -130,263,085 |
Let's try dividing by 4:
130,263,085 ÷ 4 = 32,565,771.25
If the quotient is a whole number, then 4 and 32,565,771.25 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 | 130,263,085 | |
| -1 | 130,263,085 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 47 | 155 | 235 | 1,457 | 7,285 | 17,881 | 89,405 | 554,311 | 840,407 | 2,771,555 | 4,202,035 | 26,052,617 | 130,263,085 |
| -1 | -5 | -31 | -47 | -155 | -235 | -1,457 | -7,285 | -17,881 | -89,405 | -554,311 | -840,407 | -2,771,555 | -4,202,035 | -26,052,617 | -130,263,085 |
Here are some more numbers to try:
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