A:
Positive:
1 x 252182755 x 504365525 x 100873137 x 681575137 x 184075185 x 136315199 x 126725685 x 36815925 x 27263995 x 253453425 x 73634975 x 5069
Negative:
-1 x -25218275-5 x -5043655-25 x -1008731-37 x -681575-137 x -184075-185 x -136315-199 x -126725-685 x -36815-925 x -27263-995 x -25345-3425 x -7363-4975 x -5069
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 25,218,275, 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 | 25,218,275 | |
| -1 | -25,218,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,218,275.
Example:
1 x 25,218,275 = 25,218,275
and
-1 x -25,218,275 = 25,218,275
Notice both answers equal 25,218,275
With that explanation out of the way, let's continue. Next, we take the number 25,218,275 and divide it by 2:
25,218,275 ÷ 2 = 12,609,137.5
If the quotient is a whole number, then 2 and 12,609,137.5 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 | 25,218,275 | |
| -1 | -25,218,275 |
Now, we try dividing 25,218,275 by 3:
25,218,275 ÷ 3 = 8,406,091.6667
If the quotient is a whole number, then 3 and 8,406,091.6667 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 | 25,218,275 | |
| -1 | -25,218,275 |
Let's try dividing by 4:
25,218,275 ÷ 4 = 6,304,568.75
If the quotient is a whole number, then 4 and 6,304,568.75 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 | 25,218,275 | |
| -1 | 25,218,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 37 | 137 | 185 | 199 | 685 | 925 | 995 | 3,425 | 4,975 | 5,069 | 7,363 | 25,345 | 27,263 | 36,815 | 126,725 | 136,315 | 184,075 | 681,575 | 1,008,731 | 5,043,655 | 25,218,275 |
| -1 | -5 | -25 | -37 | -137 | -185 | -199 | -685 | -925 | -995 | -3,425 | -4,975 | -5,069 | -7,363 | -25,345 | -27,263 | -36,815 | -126,725 | -136,315 | -184,075 | -681,575 | -1,008,731 | -5,043,655 | -25,218,275 |
Here are some more numbers to try:
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