A:
Positive:
1 x 1250121537 x 1785887919 x 657958723 x 5435311133 x 939941161 x 776473437 x 2860693059 x 40867
Negative:
-1 x -125012153-7 x -17858879-19 x -6579587-23 x -5435311-133 x -939941-161 x -776473-437 x -286069-3059 x -40867
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 125,012,153, 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 | 125,012,153 | |
| -1 | -125,012,153 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,012,153.
Example:
1 x 125,012,153 = 125,012,153
and
-1 x -125,012,153 = 125,012,153
Notice both answers equal 125,012,153
With that explanation out of the way, let's continue. Next, we take the number 125,012,153 and divide it by 2:
125,012,153 ÷ 2 = 62,506,076.5
If the quotient is a whole number, then 2 and 62,506,076.5 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 | 125,012,153 | |
| -1 | -125,012,153 |
Now, we try dividing 125,012,153 by 3:
125,012,153 ÷ 3 = 41,670,717.6667
If the quotient is a whole number, then 3 and 41,670,717.6667 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 | 125,012,153 | |
| -1 | -125,012,153 |
Let's try dividing by 4:
125,012,153 ÷ 4 = 31,253,038.25
If the quotient is a whole number, then 4 and 31,253,038.25 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 | 125,012,153 | |
| -1 | 125,012,153 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 23 | 133 | 161 | 437 | 3,059 | 40,867 | 286,069 | 776,473 | 939,941 | 5,435,311 | 6,579,587 | 17,858,879 | 125,012,153 |
| -1 | -7 | -19 | -23 | -133 | -161 | -437 | -3,059 | -40,867 | -286,069 | -776,473 | -939,941 | -5,435,311 | -6,579,587 | -17,858,879 | -125,012,153 |
Here are some more numbers to try:
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