A:
Positive:
1 x 378918111 x 34447117 x 22289323 x 164747187 x 20263253 x 14977391 x 9691881 x 4301
Negative:
-1 x -3789181-11 x -344471-17 x -222893-23 x -164747-187 x -20263-253 x -14977-391 x -9691-881 x -4301
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 3,789,181, 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 | 3,789,181 | |
| -1 | -3,789,181 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,789,181.
Example:
1 x 3,789,181 = 3,789,181
and
-1 x -3,789,181 = 3,789,181
Notice both answers equal 3,789,181
With that explanation out of the way, let's continue. Next, we take the number 3,789,181 and divide it by 2:
3,789,181 ÷ 2 = 1,894,590.5
If the quotient is a whole number, then 2 and 1,894,590.5 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 | 3,789,181 | |
| -1 | -3,789,181 |
Now, we try dividing 3,789,181 by 3:
3,789,181 ÷ 3 = 1,263,060.3333
If the quotient is a whole number, then 3 and 1,263,060.3333 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 | 3,789,181 | |
| -1 | -3,789,181 |
Let's try dividing by 4:
3,789,181 ÷ 4 = 947,295.25
If the quotient is a whole number, then 4 and 947,295.25 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 | 3,789,181 | |
| -1 | 3,789,181 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 23 | 187 | 253 | 391 | 881 | 4,301 | 9,691 | 14,977 | 20,263 | 164,747 | 222,893 | 344,471 | 3,789,181 |
| -1 | -11 | -17 | -23 | -187 | -253 | -391 | -881 | -4,301 | -9,691 | -14,977 | -20,263 | -164,747 | -222,893 | -344,471 | -3,789,181 |
Here are some more numbers to try:
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