A:
Positive:
1 x 25422255 x 5084457 x 36317525 x 10168935 x 7263573 x 34825175 x 14527199 x 12775365 x 6965511 x 4975995 x 25551393 x 1825
Negative:
-1 x -2542225-5 x -508445-7 x -363175-25 x -101689-35 x -72635-73 x -34825-175 x -14527-199 x -12775-365 x -6965-511 x -4975-995 x -2555-1393 x -1825
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 2,542,225, 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 | 2,542,225 | |
| -1 | -2,542,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,542,225.
Example:
1 x 2,542,225 = 2,542,225
and
-1 x -2,542,225 = 2,542,225
Notice both answers equal 2,542,225
With that explanation out of the way, let's continue. Next, we take the number 2,542,225 and divide it by 2:
2,542,225 ÷ 2 = 1,271,112.5
If the quotient is a whole number, then 2 and 1,271,112.5 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 | 2,542,225 | |
| -1 | -2,542,225 |
Now, we try dividing 2,542,225 by 3:
2,542,225 ÷ 3 = 847,408.3333
If the quotient is a whole number, then 3 and 847,408.3333 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 | 2,542,225 | |
| -1 | -2,542,225 |
Let's try dividing by 4:
2,542,225 ÷ 4 = 635,556.25
If the quotient is a whole number, then 4 and 635,556.25 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 | 2,542,225 | |
| -1 | 2,542,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 73 | 175 | 199 | 365 | 511 | 995 | 1,393 | 1,825 | 2,555 | 4,975 | 6,965 | 12,775 | 14,527 | 34,825 | 72,635 | 101,689 | 363,175 | 508,445 | 2,542,225 |
| -1 | -5 | -7 | -25 | -35 | -73 | -175 | -199 | -365 | -511 | -995 | -1,393 | -1,825 | -2,555 | -4,975 | -6,965 | -12,775 | -14,527 | -34,825 | -72,635 | -101,689 | -363,175 | -508,445 | -2,542,225 |
Here are some more numbers to try:
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