A:
Positive:
1 x 1251521155 x 2503042311 x 1137746531 x 403716555 x 2275493121 x 1034315155 x 807433341 x 367015605 x 2068631705 x 734033751 x 333656673 x 18755
Negative:
-1 x -125152115-5 x -25030423-11 x -11377465-31 x -4037165-55 x -2275493-121 x -1034315-155 x -807433-341 x -367015-605 x -206863-1705 x -73403-3751 x -33365-6673 x -18755
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 125,152,115, 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 | 125,152,115 | |
| -1 | -125,152,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,152,115.
Example:
1 x 125,152,115 = 125,152,115
and
-1 x -125,152,115 = 125,152,115
Notice both answers equal 125,152,115
With that explanation out of the way, let's continue. Next, we take the number 125,152,115 and divide it by 2:
125,152,115 ÷ 2 = 62,576,057.5
If the quotient is a whole number, then 2 and 62,576,057.5 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 | 125,152,115 | |
| -1 | -125,152,115 |
Now, we try dividing 125,152,115 by 3:
125,152,115 ÷ 3 = 41,717,371.6667
If the quotient is a whole number, then 3 and 41,717,371.6667 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 | 125,152,115 | |
| -1 | -125,152,115 |
Let's try dividing by 4:
125,152,115 ÷ 4 = 31,288,028.75
If the quotient is a whole number, then 4 and 31,288,028.75 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 | 125,152,115 | |
| -1 | 125,152,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 31 | 55 | 121 | 155 | 341 | 605 | 1,705 | 3,751 | 6,673 | 18,755 | 33,365 | 73,403 | 206,863 | 367,015 | 807,433 | 1,034,315 | 2,275,493 | 4,037,165 | 11,377,465 | 25,030,423 | 125,152,115 |
| -1 | -5 | -11 | -31 | -55 | -121 | -155 | -341 | -605 | -1,705 | -3,751 | -6,673 | -18,755 | -33,365 | -73,403 | -206,863 | -367,015 | -807,433 | -1,034,315 | -2,275,493 | -4,037,165 | -11,377,465 | -25,030,423 | -125,152,115 |
Here are some more numbers to try:
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