A:
Positive:
1 x 255602055 x 511204111 x 232365555 x 464731149 x 171545745 x 343091639 x 155953119 x 8195
Negative:
-1 x -25560205-5 x -5112041-11 x -2323655-55 x -464731-149 x -171545-745 x -34309-1639 x -15595-3119 x -8195
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 25,560,205, 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 | 25,560,205 | |
| -1 | -25,560,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,560,205.
Example:
1 x 25,560,205 = 25,560,205
and
-1 x -25,560,205 = 25,560,205
Notice both answers equal 25,560,205
With that explanation out of the way, let's continue. Next, we take the number 25,560,205 and divide it by 2:
25,560,205 ÷ 2 = 12,780,102.5
If the quotient is a whole number, then 2 and 12,780,102.5 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 | 25,560,205 | |
| -1 | -25,560,205 |
Now, we try dividing 25,560,205 by 3:
25,560,205 ÷ 3 = 8,520,068.3333
If the quotient is a whole number, then 3 and 8,520,068.3333 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 | 25,560,205 | |
| -1 | -25,560,205 |
Let's try dividing by 4:
25,560,205 ÷ 4 = 6,390,051.25
If the quotient is a whole number, then 4 and 6,390,051.25 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 | 25,560,205 | |
| -1 | 25,560,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 149 | 745 | 1,639 | 3,119 | 8,195 | 15,595 | 34,309 | 171,545 | 464,731 | 2,323,655 | 5,112,041 | 25,560,205 |
| -1 | -5 | -11 | -55 | -149 | -745 | -1,639 | -3,119 | -8,195 | -15,595 | -34,309 | -171,545 | -464,731 | -2,323,655 | -5,112,041 | -25,560,205 |
Here are some more numbers to try:
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