A:
Positive:
1 x 30990197 x 44271711 x 28172977 x 40247167 x 18557241 x 128591169 x 26511687 x 1837
Negative:
-1 x -3099019-7 x -442717-11 x -281729-77 x -40247-167 x -18557-241 x -12859-1169 x -2651-1687 x -1837
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 3,099,019, 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 | 3,099,019 | |
| -1 | -3,099,019 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,099,019.
Example:
1 x 3,099,019 = 3,099,019
and
-1 x -3,099,019 = 3,099,019
Notice both answers equal 3,099,019
With that explanation out of the way, let's continue. Next, we take the number 3,099,019 and divide it by 2:
3,099,019 ÷ 2 = 1,549,509.5
If the quotient is a whole number, then 2 and 1,549,509.5 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 | 3,099,019 | |
| -1 | -3,099,019 |
Now, we try dividing 3,099,019 by 3:
3,099,019 ÷ 3 = 1,033,006.3333
If the quotient is a whole number, then 3 and 1,033,006.3333 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 | 3,099,019 | |
| -1 | -3,099,019 |
Let's try dividing by 4:
3,099,019 ÷ 4 = 774,754.75
If the quotient is a whole number, then 4 and 774,754.75 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 | 3,099,019 | |
| -1 | 3,099,019 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 167 | 241 | 1,169 | 1,687 | 1,837 | 2,651 | 12,859 | 18,557 | 40,247 | 281,729 | 442,717 | 3,099,019 |
| -1 | -7 | -11 | -77 | -167 | -241 | -1,169 | -1,687 | -1,837 | -2,651 | -12,859 | -18,557 | -40,247 | -281,729 | -442,717 | -3,099,019 |
Here are some more numbers to try:
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