A:
Positive:
1 x 188550255 x 37710057 x 269357525 x 75420135 x 538715163 x 115675175 x 107743661 x 28525815 x 231351141 x 165253305 x 57054075 x 4627
Negative:
-1 x -18855025-5 x -3771005-7 x -2693575-25 x -754201-35 x -538715-163 x -115675-175 x -107743-661 x -28525-815 x -23135-1141 x -16525-3305 x -5705-4075 x -4627
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 18,855,025, 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 | 18,855,025 | |
| -1 | -18,855,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,855,025.
Example:
1 x 18,855,025 = 18,855,025
and
-1 x -18,855,025 = 18,855,025
Notice both answers equal 18,855,025
With that explanation out of the way, let's continue. Next, we take the number 18,855,025 and divide it by 2:
18,855,025 ÷ 2 = 9,427,512.5
If the quotient is a whole number, then 2 and 9,427,512.5 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 | 18,855,025 | |
| -1 | -18,855,025 |
Now, we try dividing 18,855,025 by 3:
18,855,025 ÷ 3 = 6,285,008.3333
If the quotient is a whole number, then 3 and 6,285,008.3333 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 | 18,855,025 | |
| -1 | -18,855,025 |
Let's try dividing by 4:
18,855,025 ÷ 4 = 4,713,756.25
If the quotient is a whole number, then 4 and 4,713,756.25 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 | 18,855,025 | |
| -1 | 18,855,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 163 | 175 | 661 | 815 | 1,141 | 3,305 | 4,075 | 4,627 | 5,705 | 16,525 | 23,135 | 28,525 | 107,743 | 115,675 | 538,715 | 754,201 | 2,693,575 | 3,771,005 | 18,855,025 |
| -1 | -5 | -7 | -25 | -35 | -163 | -175 | -661 | -815 | -1,141 | -3,305 | -4,075 | -4,627 | -5,705 | -16,525 | -23,135 | -28,525 | -107,743 | -115,675 | -538,715 | -754,201 | -2,693,575 | -3,771,005 | -18,855,025 |
Here are some more numbers to try:
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