A:
Positive:
1 x 250024455 x 500048913 x 192326565 x 384653211 x 1184951055 x 236991823 x 137152743 x 9115
Negative:
-1 x -25002445-5 x -5000489-13 x -1923265-65 x -384653-211 x -118495-1055 x -23699-1823 x -13715-2743 x -9115
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 25,002,445, 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 | 25,002,445 | |
| -1 | -25,002,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,002,445.
Example:
1 x 25,002,445 = 25,002,445
and
-1 x -25,002,445 = 25,002,445
Notice both answers equal 25,002,445
With that explanation out of the way, let's continue. Next, we take the number 25,002,445 and divide it by 2:
25,002,445 ÷ 2 = 12,501,222.5
If the quotient is a whole number, then 2 and 12,501,222.5 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 | 25,002,445 | |
| -1 | -25,002,445 |
Now, we try dividing 25,002,445 by 3:
25,002,445 ÷ 3 = 8,334,148.3333
If the quotient is a whole number, then 3 and 8,334,148.3333 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 | 25,002,445 | |
| -1 | -25,002,445 |
Let's try dividing by 4:
25,002,445 ÷ 4 = 6,250,611.25
If the quotient is a whole number, then 4 and 6,250,611.25 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 | 25,002,445 | |
| -1 | 25,002,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 211 | 1,055 | 1,823 | 2,743 | 9,115 | 13,715 | 23,699 | 118,495 | 384,653 | 1,923,265 | 5,000,489 | 25,002,445 |
| -1 | -5 | -13 | -65 | -211 | -1,055 | -1,823 | -2,743 | -9,115 | -13,715 | -23,699 | -118,495 | -384,653 | -1,923,265 | -5,000,489 | -25,002,445 |
Here are some more numbers to try:
Try the factor calculator