A:
Positive:
1 x 30380055 x 60760119 x 15989595 x 31979113 x 26885283 x 10735565 x 53771415 x 2147
Negative:
-1 x -3038005-5 x -607601-19 x -159895-95 x -31979-113 x -26885-283 x -10735-565 x -5377-1415 x -2147
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 3,038,005, 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 | 3,038,005 | |
| -1 | -3,038,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,038,005.
Example:
1 x 3,038,005 = 3,038,005
and
-1 x -3,038,005 = 3,038,005
Notice both answers equal 3,038,005
With that explanation out of the way, let's continue. Next, we take the number 3,038,005 and divide it by 2:
3,038,005 ÷ 2 = 1,519,002.5
If the quotient is a whole number, then 2 and 1,519,002.5 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 | 3,038,005 | |
| -1 | -3,038,005 |
Now, we try dividing 3,038,005 by 3:
3,038,005 ÷ 3 = 1,012,668.3333
If the quotient is a whole number, then 3 and 1,012,668.3333 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 | 3,038,005 | |
| -1 | -3,038,005 |
Let's try dividing by 4:
3,038,005 ÷ 4 = 759,501.25
If the quotient is a whole number, then 4 and 759,501.25 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 | 3,038,005 | |
| -1 | 3,038,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 113 | 283 | 565 | 1,415 | 2,147 | 5,377 | 10,735 | 26,885 | 31,979 | 159,895 | 607,601 | 3,038,005 |
| -1 | -5 | -19 | -95 | -113 | -283 | -565 | -1,415 | -2,147 | -5,377 | -10,735 | -26,885 | -31,979 | -159,895 | -607,601 | -3,038,005 |
Here are some more numbers to try:
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