A:
Positive:
1 x 2354306155 x 470861237 x 3363294519 x 1239108535 x 672658995 x 2478217133 x 1770155665 x 354031
Negative:
-1 x -235430615-5 x -47086123-7 x -33632945-19 x -12391085-35 x -6726589-95 x -2478217-133 x -1770155-665 x -354031
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 235,430,615, 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 | 235,430,615 | |
| -1 | -235,430,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 235,430,615.
Example:
1 x 235,430,615 = 235,430,615
and
-1 x -235,430,615 = 235,430,615
Notice both answers equal 235,430,615
With that explanation out of the way, let's continue. Next, we take the number 235,430,615 and divide it by 2:
235,430,615 ÷ 2 = 117,715,307.5
If the quotient is a whole number, then 2 and 117,715,307.5 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 | 235,430,615 | |
| -1 | -235,430,615 |
Now, we try dividing 235,430,615 by 3:
235,430,615 ÷ 3 = 78,476,871.6667
If the quotient is a whole number, then 3 and 78,476,871.6667 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 | 235,430,615 | |
| -1 | -235,430,615 |
Let's try dividing by 4:
235,430,615 ÷ 4 = 58,857,653.75
If the quotient is a whole number, then 4 and 58,857,653.75 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 | 235,430,615 | |
| -1 | 235,430,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 665 | 354,031 | 1,770,155 | 2,478,217 | 6,726,589 | 12,391,085 | 33,632,945 | 47,086,123 | 235,430,615 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -665 | -354,031 | -1,770,155 | -2,478,217 | -6,726,589 | -12,391,085 | -33,632,945 | -47,086,123 | -235,430,615 |
Here are some more numbers to try:
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