A:
Positive:
1 x 182035755 x 364071513 x 140027525 x 72814365 x 28005579 x 230425325 x 56011395 x 46085709 x 256751027 x 177251975 x 92173545 x 5135
Negative:
-1 x -18203575-5 x -3640715-13 x -1400275-25 x -728143-65 x -280055-79 x -230425-325 x -56011-395 x -46085-709 x -25675-1027 x -17725-1975 x -9217-3545 x -5135
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 18,203,575, 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 | 18,203,575 | |
| -1 | -18,203,575 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,203,575.
Example:
1 x 18,203,575 = 18,203,575
and
-1 x -18,203,575 = 18,203,575
Notice both answers equal 18,203,575
With that explanation out of the way, let's continue. Next, we take the number 18,203,575 and divide it by 2:
18,203,575 ÷ 2 = 9,101,787.5
If the quotient is a whole number, then 2 and 9,101,787.5 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 | 18,203,575 | |
| -1 | -18,203,575 |
Now, we try dividing 18,203,575 by 3:
18,203,575 ÷ 3 = 6,067,858.3333
If the quotient is a whole number, then 3 and 6,067,858.3333 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 | 18,203,575 | |
| -1 | -18,203,575 |
Let's try dividing by 4:
18,203,575 ÷ 4 = 4,550,893.75
If the quotient is a whole number, then 4 and 4,550,893.75 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 | 18,203,575 | |
| -1 | 18,203,575 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 79 | 325 | 395 | 709 | 1,027 | 1,975 | 3,545 | 5,135 | 9,217 | 17,725 | 25,675 | 46,085 | 56,011 | 230,425 | 280,055 | 728,143 | 1,400,275 | 3,640,715 | 18,203,575 |
| -1 | -5 | -13 | -25 | -65 | -79 | -325 | -395 | -709 | -1,027 | -1,975 | -3,545 | -5,135 | -9,217 | -17,725 | -25,675 | -46,085 | -56,011 | -230,425 | -280,055 | -728,143 | -1,400,275 | -3,640,715 | -18,203,575 |
Here are some more numbers to try:
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