A:
Positive:
1 x 251140455 x 502280911 x 228309523 x 109191555 x 456619115 x 218383253 x 992651265 x 19853
Negative:
-1 x -25114045-5 x -5022809-11 x -2283095-23 x -1091915-55 x -456619-115 x -218383-253 x -99265-1265 x -19853
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 25,114,045, 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 | 25,114,045 | |
| -1 | -25,114,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,114,045.
Example:
1 x 25,114,045 = 25,114,045
and
-1 x -25,114,045 = 25,114,045
Notice both answers equal 25,114,045
With that explanation out of the way, let's continue. Next, we take the number 25,114,045 and divide it by 2:
25,114,045 ÷ 2 = 12,557,022.5
If the quotient is a whole number, then 2 and 12,557,022.5 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 | 25,114,045 | |
| -1 | -25,114,045 |
Now, we try dividing 25,114,045 by 3:
25,114,045 ÷ 3 = 8,371,348.3333
If the quotient is a whole number, then 3 and 8,371,348.3333 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 | 25,114,045 | |
| -1 | -25,114,045 |
Let's try dividing by 4:
25,114,045 ÷ 4 = 6,278,511.25
If the quotient is a whole number, then 4 and 6,278,511.25 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 | 25,114,045 | |
| -1 | 25,114,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 23 | 55 | 115 | 253 | 1,265 | 19,853 | 99,265 | 218,383 | 456,619 | 1,091,915 | 2,283,095 | 5,022,809 | 25,114,045 |
| -1 | -5 | -11 | -23 | -55 | -115 | -253 | -1,265 | -19,853 | -99,265 | -218,383 | -456,619 | -1,091,915 | -2,283,095 | -5,022,809 | -25,114,045 |
Here are some more numbers to try:
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