A:
Positive:
1 x 19869255 x 39738519 x 10457525 x 7947747 x 4227589 x 2232595 x 20915235 x 8455445 x 4465475 x 4183893 x 22251175 x 1691
Negative:
-1 x -1986925-5 x -397385-19 x -104575-25 x -79477-47 x -42275-89 x -22325-95 x -20915-235 x -8455-445 x -4465-475 x -4183-893 x -2225-1175 x -1691
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 1,986,925, 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 | 1,986,925 | |
| -1 | -1,986,925 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,986,925.
Example:
1 x 1,986,925 = 1,986,925
and
-1 x -1,986,925 = 1,986,925
Notice both answers equal 1,986,925
With that explanation out of the way, let's continue. Next, we take the number 1,986,925 and divide it by 2:
1,986,925 ÷ 2 = 993,462.5
If the quotient is a whole number, then 2 and 993,462.5 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 | 1,986,925 | |
| -1 | -1,986,925 |
Now, we try dividing 1,986,925 by 3:
1,986,925 ÷ 3 = 662,308.3333
If the quotient is a whole number, then 3 and 662,308.3333 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 | 1,986,925 | |
| -1 | -1,986,925 |
Let's try dividing by 4:
1,986,925 ÷ 4 = 496,731.25
If the quotient is a whole number, then 4 and 496,731.25 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 | 1,986,925 | |
| -1 | 1,986,925 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 47 | 89 | 95 | 235 | 445 | 475 | 893 | 1,175 | 1,691 | 2,225 | 4,183 | 4,465 | 8,455 | 20,915 | 22,325 | 42,275 | 79,477 | 104,575 | 397,385 | 1,986,925 |
| -1 | -5 | -19 | -25 | -47 | -89 | -95 | -235 | -445 | -475 | -893 | -1,175 | -1,691 | -2,225 | -4,183 | -4,465 | -8,455 | -20,915 | -22,325 | -42,275 | -79,477 | -104,575 | -397,385 | -1,986,925 |
Here are some more numbers to try:
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