A:
Positive:
1 x 38141455 x 76282937 x 10308553 x 71965185 x 20617265 x 14393389 x 98051945 x 1961
Negative:
-1 x -3814145-5 x -762829-37 x -103085-53 x -71965-185 x -20617-265 x -14393-389 x -9805-1945 x -1961
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 3,814,145, 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 | 3,814,145 | |
| -1 | -3,814,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,814,145.
Example:
1 x 3,814,145 = 3,814,145
and
-1 x -3,814,145 = 3,814,145
Notice both answers equal 3,814,145
With that explanation out of the way, let's continue. Next, we take the number 3,814,145 and divide it by 2:
3,814,145 ÷ 2 = 1,907,072.5
If the quotient is a whole number, then 2 and 1,907,072.5 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 | 3,814,145 | |
| -1 | -3,814,145 |
Now, we try dividing 3,814,145 by 3:
3,814,145 ÷ 3 = 1,271,381.6667
If the quotient is a whole number, then 3 and 1,271,381.6667 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 | 3,814,145 | |
| -1 | -3,814,145 |
Let's try dividing by 4:
3,814,145 ÷ 4 = 953,536.25
If the quotient is a whole number, then 4 and 953,536.25 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 | 3,814,145 | |
| -1 | 3,814,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 53 | 185 | 265 | 389 | 1,945 | 1,961 | 9,805 | 14,393 | 20,617 | 71,965 | 103,085 | 762,829 | 3,814,145 |
| -1 | -5 | -37 | -53 | -185 | -265 | -389 | -1,945 | -1,961 | -9,805 | -14,393 | -20,617 | -71,965 | -103,085 | -762,829 | -3,814,145 |
Here are some more numbers to try:
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