A:
Positive:
1 x 20457255 x 40914511 x 18597525 x 8182943 x 4757555 x 37195173 x 11825215 x 9515275 x 7439473 x 4325865 x 23651075 x 1903
Negative:
-1 x -2045725-5 x -409145-11 x -185975-25 x -81829-43 x -47575-55 x -37195-173 x -11825-215 x -9515-275 x -7439-473 x -4325-865 x -2365-1075 x -1903
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 2,045,725, 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 | 2,045,725 | |
| -1 | -2,045,725 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,045,725.
Example:
1 x 2,045,725 = 2,045,725
and
-1 x -2,045,725 = 2,045,725
Notice both answers equal 2,045,725
With that explanation out of the way, let's continue. Next, we take the number 2,045,725 and divide it by 2:
2,045,725 ÷ 2 = 1,022,862.5
If the quotient is a whole number, then 2 and 1,022,862.5 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 | 2,045,725 | |
| -1 | -2,045,725 |
Now, we try dividing 2,045,725 by 3:
2,045,725 ÷ 3 = 681,908.3333
If the quotient is a whole number, then 3 and 681,908.3333 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 | 2,045,725 | |
| -1 | -2,045,725 |
Let's try dividing by 4:
2,045,725 ÷ 4 = 511,431.25
If the quotient is a whole number, then 4 and 511,431.25 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 | 2,045,725 | |
| -1 | 2,045,725 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 43 | 55 | 173 | 215 | 275 | 473 | 865 | 1,075 | 1,903 | 2,365 | 4,325 | 7,439 | 9,515 | 11,825 | 37,195 | 47,575 | 81,829 | 185,975 | 409,145 | 2,045,725 |
| -1 | -5 | -11 | -25 | -43 | -55 | -173 | -215 | -275 | -473 | -865 | -1,075 | -1,903 | -2,365 | -4,325 | -7,439 | -9,515 | -11,825 | -37,195 | -47,575 | -81,829 | -185,975 | -409,145 | -2,045,725 |
Here are some more numbers to try:
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