A:
Positive:
1 x 125171417 x 178816313 x 96285767 x 18682391 x 137551469 x 26689871 x 143712053 x 6097
Negative:
-1 x -12517141-7 x -1788163-13 x -962857-67 x -186823-91 x -137551-469 x -26689-871 x -14371-2053 x -6097
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 12,517,141, 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 | 12,517,141 | |
| -1 | -12,517,141 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,517,141.
Example:
1 x 12,517,141 = 12,517,141
and
-1 x -12,517,141 = 12,517,141
Notice both answers equal 12,517,141
With that explanation out of the way, let's continue. Next, we take the number 12,517,141 and divide it by 2:
12,517,141 ÷ 2 = 6,258,570.5
If the quotient is a whole number, then 2 and 6,258,570.5 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 | 12,517,141 | |
| -1 | -12,517,141 |
Now, we try dividing 12,517,141 by 3:
12,517,141 ÷ 3 = 4,172,380.3333
If the quotient is a whole number, then 3 and 4,172,380.3333 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 | 12,517,141 | |
| -1 | -12,517,141 |
Let's try dividing by 4:
12,517,141 ÷ 4 = 3,129,285.25
If the quotient is a whole number, then 4 and 3,129,285.25 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 | 12,517,141 | |
| -1 | 12,517,141 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 67 | 91 | 469 | 871 | 2,053 | 6,097 | 14,371 | 26,689 | 137,551 | 186,823 | 962,857 | 1,788,163 | 12,517,141 |
| -1 | -7 | -13 | -67 | -91 | -469 | -871 | -2,053 | -6,097 | -14,371 | -26,689 | -137,551 | -186,823 | -962,857 | -1,788,163 | -12,517,141 |
Here are some more numbers to try:
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