A:
Positive:
1 x 1227016155 x 2454032379 x 1553185113 x 1085855395 x 310637565 x 2171712749 x 446358927 x 13745
Negative:
-1 x -122701615-5 x -24540323-79 x -1553185-113 x -1085855-395 x -310637-565 x -217171-2749 x -44635-8927 x -13745
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 122,701,615, 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 | 122,701,615 | |
| -1 | -122,701,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,701,615.
Example:
1 x 122,701,615 = 122,701,615
and
-1 x -122,701,615 = 122,701,615
Notice both answers equal 122,701,615
With that explanation out of the way, let's continue. Next, we take the number 122,701,615 and divide it by 2:
122,701,615 ÷ 2 = 61,350,807.5
If the quotient is a whole number, then 2 and 61,350,807.5 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 | 122,701,615 | |
| -1 | -122,701,615 |
Now, we try dividing 122,701,615 by 3:
122,701,615 ÷ 3 = 40,900,538.3333
If the quotient is a whole number, then 3 and 40,900,538.3333 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 | 122,701,615 | |
| -1 | -122,701,615 |
Let's try dividing by 4:
122,701,615 ÷ 4 = 30,675,403.75
If the quotient is a whole number, then 4 and 30,675,403.75 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 | 122,701,615 | |
| -1 | 122,701,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 79 | 113 | 395 | 565 | 2,749 | 8,927 | 13,745 | 44,635 | 217,171 | 310,637 | 1,085,855 | 1,553,185 | 24,540,323 | 122,701,615 |
| -1 | -5 | -79 | -113 | -395 | -565 | -2,749 | -8,927 | -13,745 | -44,635 | -217,171 | -310,637 | -1,085,855 | -1,553,185 | -24,540,323 | -122,701,615 |
Here are some more numbers to try:
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