A:
Positive:
1 x 250540155 x 50108037 x 357914523 x 108930535 x 715829115 x 217861161 x 155615805 x 31123
Negative:
-1 x -25054015-5 x -5010803-7 x -3579145-23 x -1089305-35 x -715829-115 x -217861-161 x -155615-805 x -31123
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 25,054,015, 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 | 25,054,015 | |
| -1 | -25,054,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,054,015.
Example:
1 x 25,054,015 = 25,054,015
and
-1 x -25,054,015 = 25,054,015
Notice both answers equal 25,054,015
With that explanation out of the way, let's continue. Next, we take the number 25,054,015 and divide it by 2:
25,054,015 ÷ 2 = 12,527,007.5
If the quotient is a whole number, then 2 and 12,527,007.5 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 | 25,054,015 | |
| -1 | -25,054,015 |
Now, we try dividing 25,054,015 by 3:
25,054,015 ÷ 3 = 8,351,338.3333
If the quotient is a whole number, then 3 and 8,351,338.3333 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 | 25,054,015 | |
| -1 | -25,054,015 |
Let's try dividing by 4:
25,054,015 ÷ 4 = 6,263,503.75
If the quotient is a whole number, then 4 and 6,263,503.75 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 | 25,054,015 | |
| -1 | 25,054,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 31,123 | 155,615 | 217,861 | 715,829 | 1,089,305 | 3,579,145 | 5,010,803 | 25,054,015 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -31,123 | -155,615 | -217,861 | -715,829 | -1,089,305 | -3,579,145 | -5,010,803 | -25,054,015 |
Here are some more numbers to try:
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