A:
Positive:
1 x 3914137711 x 355830723 x 170179971 x 551287253 x 154709781 x 501171633 x 239692179 x 17963
Negative:
-1 x -39141377-11 x -3558307-23 x -1701799-71 x -551287-253 x -154709-781 x -50117-1633 x -23969-2179 x -17963
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 39,141,377, 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 | 39,141,377 | |
| -1 | -39,141,377 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,141,377.
Example:
1 x 39,141,377 = 39,141,377
and
-1 x -39,141,377 = 39,141,377
Notice both answers equal 39,141,377
With that explanation out of the way, let's continue. Next, we take the number 39,141,377 and divide it by 2:
39,141,377 ÷ 2 = 19,570,688.5
If the quotient is a whole number, then 2 and 19,570,688.5 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 | 39,141,377 | |
| -1 | -39,141,377 |
Now, we try dividing 39,141,377 by 3:
39,141,377 ÷ 3 = 13,047,125.6667
If the quotient is a whole number, then 3 and 13,047,125.6667 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 | 39,141,377 | |
| -1 | -39,141,377 |
Let's try dividing by 4:
39,141,377 ÷ 4 = 9,785,344.25
If the quotient is a whole number, then 4 and 9,785,344.25 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 | 39,141,377 | |
| -1 | 39,141,377 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 71 | 253 | 781 | 1,633 | 2,179 | 17,963 | 23,969 | 50,117 | 154,709 | 551,287 | 1,701,799 | 3,558,307 | 39,141,377 |
| -1 | -11 | -23 | -71 | -253 | -781 | -1,633 | -2,179 | -17,963 | -23,969 | -50,117 | -154,709 | -551,287 | -1,701,799 | -3,558,307 | -39,141,377 |
Here are some more numbers to try:
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