A:
Positive:
1 x 1152147855 x 230429577 x 1645925535 x 329185179 x 1458415395 x 291683553 x 2083452765 x 41669
Negative:
-1 x -115214785-5 x -23042957-7 x -16459255-35 x -3291851-79 x -1458415-395 x -291683-553 x -208345-2765 x -41669
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 115,214,785, 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 | 115,214,785 | |
| -1 | -115,214,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,214,785.
Example:
1 x 115,214,785 = 115,214,785
and
-1 x -115,214,785 = 115,214,785
Notice both answers equal 115,214,785
With that explanation out of the way, let's continue. Next, we take the number 115,214,785 and divide it by 2:
115,214,785 ÷ 2 = 57,607,392.5
If the quotient is a whole number, then 2 and 57,607,392.5 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 | 115,214,785 | |
| -1 | -115,214,785 |
Now, we try dividing 115,214,785 by 3:
115,214,785 ÷ 3 = 38,404,928.3333
If the quotient is a whole number, then 3 and 38,404,928.3333 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 | 115,214,785 | |
| -1 | -115,214,785 |
Let's try dividing by 4:
115,214,785 ÷ 4 = 28,803,696.25
If the quotient is a whole number, then 4 and 28,803,696.25 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 | 115,214,785 | |
| -1 | 115,214,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 79 | 395 | 553 | 2,765 | 41,669 | 208,345 | 291,683 | 1,458,415 | 3,291,851 | 16,459,255 | 23,042,957 | 115,214,785 |
| -1 | -5 | -7 | -35 | -79 | -395 | -553 | -2,765 | -41,669 | -208,345 | -291,683 | -1,458,415 | -3,291,851 | -16,459,255 | -23,042,957 | -115,214,785 |
Here are some more numbers to try:
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