A:
Positive:
1 x 392941437 x 561344923 x 170844131 x 1267553161 x 244063217 x 181079713 x 551114991 x 7873
Negative:
-1 x -39294143-7 x -5613449-23 x -1708441-31 x -1267553-161 x -244063-217 x -181079-713 x -55111-4991 x -7873
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 39,294,143, 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 | 39,294,143 | |
| -1 | -39,294,143 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,294,143.
Example:
1 x 39,294,143 = 39,294,143
and
-1 x -39,294,143 = 39,294,143
Notice both answers equal 39,294,143
With that explanation out of the way, let's continue. Next, we take the number 39,294,143 and divide it by 2:
39,294,143 ÷ 2 = 19,647,071.5
If the quotient is a whole number, then 2 and 19,647,071.5 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 | 39,294,143 | |
| -1 | -39,294,143 |
Now, we try dividing 39,294,143 by 3:
39,294,143 ÷ 3 = 13,098,047.6667
If the quotient is a whole number, then 3 and 13,098,047.6667 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 | 39,294,143 | |
| -1 | -39,294,143 |
Let's try dividing by 4:
39,294,143 ÷ 4 = 9,823,535.75
If the quotient is a whole number, then 4 and 9,823,535.75 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 | 39,294,143 | |
| -1 | 39,294,143 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 31 | 161 | 217 | 713 | 4,991 | 7,873 | 55,111 | 181,079 | 244,063 | 1,267,553 | 1,708,441 | 5,613,449 | 39,294,143 |
| -1 | -7 | -23 | -31 | -161 | -217 | -713 | -4,991 | -7,873 | -55,111 | -181,079 | -244,063 | -1,267,553 | -1,708,441 | -5,613,449 | -39,294,143 |
Here are some more numbers to try:
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