A:
Positive:
1 x 1241148711 x 112831753 x 23417961 x 203467349 x 35563583 x 21289671 x 184973233 x 3839
Negative:
-1 x -12411487-11 x -1128317-53 x -234179-61 x -203467-349 x -35563-583 x -21289-671 x -18497-3233 x -3839
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 12,411,487, 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 | 12,411,487 | |
| -1 | -12,411,487 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,411,487.
Example:
1 x 12,411,487 = 12,411,487
and
-1 x -12,411,487 = 12,411,487
Notice both answers equal 12,411,487
With that explanation out of the way, let's continue. Next, we take the number 12,411,487 and divide it by 2:
12,411,487 ÷ 2 = 6,205,743.5
If the quotient is a whole number, then 2 and 6,205,743.5 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 | 12,411,487 | |
| -1 | -12,411,487 |
Now, we try dividing 12,411,487 by 3:
12,411,487 ÷ 3 = 4,137,162.3333
If the quotient is a whole number, then 3 and 4,137,162.3333 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 | 12,411,487 | |
| -1 | -12,411,487 |
Let's try dividing by 4:
12,411,487 ÷ 4 = 3,102,871.75
If the quotient is a whole number, then 4 and 3,102,871.75 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 | 12,411,487 | |
| -1 | 12,411,487 |
If you did it right, you will end up with this table:
| 1 | 11 | 53 | 61 | 349 | 583 | 671 | 3,233 | 3,839 | 18,497 | 21,289 | 35,563 | 203,467 | 234,179 | 1,128,317 | 12,411,487 |
| -1 | -11 | -53 | -61 | -349 | -583 | -671 | -3,233 | -3,839 | -18,497 | -21,289 | -35,563 | -203,467 | -234,179 | -1,128,317 | -12,411,487 |
Here are some more numbers to try:
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