A:
Positive:
1 x 1201401255 x 240280257 x 1716287525 x 480560535 x 3432575125 x 961121175 x 686515875 x 137303
Negative:
-1 x -120140125-5 x -24028025-7 x -17162875-25 x -4805605-35 x -3432575-125 x -961121-175 x -686515-875 x -137303
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 120,140,125, 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 | 120,140,125 | |
| -1 | -120,140,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,140,125.
Example:
1 x 120,140,125 = 120,140,125
and
-1 x -120,140,125 = 120,140,125
Notice both answers equal 120,140,125
With that explanation out of the way, let's continue. Next, we take the number 120,140,125 and divide it by 2:
120,140,125 ÷ 2 = 60,070,062.5
If the quotient is a whole number, then 2 and 60,070,062.5 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 | 120,140,125 | |
| -1 | -120,140,125 |
Now, we try dividing 120,140,125 by 3:
120,140,125 ÷ 3 = 40,046,708.3333
If the quotient is a whole number, then 3 and 40,046,708.3333 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 | 120,140,125 | |
| -1 | -120,140,125 |
Let's try dividing by 4:
120,140,125 ÷ 4 = 30,035,031.25
If the quotient is a whole number, then 4 and 30,035,031.25 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 | 120,140,125 | |
| -1 | 120,140,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 125 | 175 | 875 | 137,303 | 686,515 | 961,121 | 3,432,575 | 4,805,605 | 17,162,875 | 24,028,025 | 120,140,125 |
| -1 | -5 | -7 | -25 | -35 | -125 | -175 | -875 | -137,303 | -686,515 | -961,121 | -3,432,575 | -4,805,605 | -17,162,875 | -24,028,025 | -120,140,125 |
Here are some more numbers to try:
Try the factor calculator