A:
Positive:
1 x 1303030155 x 2606060361 x 2136115163 x 799405305 x 427223815 x 1598812621 x 497159943 x 13105
Negative:
-1 x -130303015-5 x -26060603-61 x -2136115-163 x -799405-305 x -427223-815 x -159881-2621 x -49715-9943 x -13105
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 130,303,015, 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 | 130,303,015 | |
| -1 | -130,303,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,303,015.
Example:
1 x 130,303,015 = 130,303,015
and
-1 x -130,303,015 = 130,303,015
Notice both answers equal 130,303,015
With that explanation out of the way, let's continue. Next, we take the number 130,303,015 and divide it by 2:
130,303,015 ÷ 2 = 65,151,507.5
If the quotient is a whole number, then 2 and 65,151,507.5 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 | 130,303,015 | |
| -1 | -130,303,015 |
Now, we try dividing 130,303,015 by 3:
130,303,015 ÷ 3 = 43,434,338.3333
If the quotient is a whole number, then 3 and 43,434,338.3333 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 | 130,303,015 | |
| -1 | -130,303,015 |
Let's try dividing by 4:
130,303,015 ÷ 4 = 32,575,753.75
If the quotient is a whole number, then 4 and 32,575,753.75 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 | 130,303,015 | |
| -1 | 130,303,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 61 | 163 | 305 | 815 | 2,621 | 9,943 | 13,105 | 49,715 | 159,881 | 427,223 | 799,405 | 2,136,115 | 26,060,603 | 130,303,015 |
| -1 | -5 | -61 | -163 | -305 | -815 | -2,621 | -9,943 | -13,105 | -49,715 | -159,881 | -427,223 | -799,405 | -2,136,115 | -26,060,603 | -130,303,015 |
Here are some more numbers to try:
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