A:
Positive:
1 x 301819111 x 27438131 x 9736153 x 56947167 x 18073341 x 8851583 x 51771643 x 1837
Negative:
-1 x -3018191-11 x -274381-31 x -97361-53 x -56947-167 x -18073-341 x -8851-583 x -5177-1643 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 3,018,191, 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 | 3,018,191 | |
| -1 | -3,018,191 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,018,191.
Example:
1 x 3,018,191 = 3,018,191
and
-1 x -3,018,191 = 3,018,191
Notice both answers equal 3,018,191
With that explanation out of the way, let's continue. Next, we take the number 3,018,191 and divide it by 2:
3,018,191 ÷ 2 = 1,509,095.5
If the quotient is a whole number, then 2 and 1,509,095.5 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 | 3,018,191 | |
| -1 | -3,018,191 |
Now, we try dividing 3,018,191 by 3:
3,018,191 ÷ 3 = 1,006,063.6667
If the quotient is a whole number, then 3 and 1,006,063.6667 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 | 3,018,191 | |
| -1 | -3,018,191 |
Let's try dividing by 4:
3,018,191 ÷ 4 = 754,547.75
If the quotient is a whole number, then 4 and 754,547.75 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 | 3,018,191 | |
| -1 | 3,018,191 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 53 | 167 | 341 | 583 | 1,643 | 1,837 | 5,177 | 8,851 | 18,073 | 56,947 | 97,361 | 274,381 | 3,018,191 |
| -1 | -11 | -31 | -53 | -167 | -341 | -583 | -1,643 | -1,837 | -5,177 | -8,851 | -18,073 | -56,947 | -97,361 | -274,381 | -3,018,191 |
Here are some more numbers to try:
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