A:
Positive:
1 x 1600123755 x 3200247525 x 6400495125 x 1280099449 x 3563752245 x 712752851 x 5612511225 x 14255
Negative:
-1 x -160012375-5 x -32002475-25 x -6400495-125 x -1280099-449 x -356375-2245 x -71275-2851 x -56125-11225 x -14255
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 160,012,375, 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 | 160,012,375 | |
| -1 | -160,012,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,012,375.
Example:
1 x 160,012,375 = 160,012,375
and
-1 x -160,012,375 = 160,012,375
Notice both answers equal 160,012,375
With that explanation out of the way, let's continue. Next, we take the number 160,012,375 and divide it by 2:
160,012,375 ÷ 2 = 80,006,187.5
If the quotient is a whole number, then 2 and 80,006,187.5 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 | 160,012,375 | |
| -1 | -160,012,375 |
Now, we try dividing 160,012,375 by 3:
160,012,375 ÷ 3 = 53,337,458.3333
If the quotient is a whole number, then 3 and 53,337,458.3333 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 | 160,012,375 | |
| -1 | -160,012,375 |
Let's try dividing by 4:
160,012,375 ÷ 4 = 40,003,093.75
If the quotient is a whole number, then 4 and 40,003,093.75 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 | 160,012,375 | |
| -1 | 160,012,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 449 | 2,245 | 2,851 | 11,225 | 14,255 | 56,125 | 71,275 | 356,375 | 1,280,099 | 6,400,495 | 32,002,475 | 160,012,375 |
| -1 | -5 | -25 | -125 | -449 | -2,245 | -2,851 | -11,225 | -14,255 | -56,125 | -71,275 | -356,375 | -1,280,099 | -6,400,495 | -32,002,475 | -160,012,375 |
Here are some more numbers to try:
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