A:
Positive:
1 x 125471155 x 25094237 x 179244535 x 358489211 x 594651055 x 118931477 x 84951699 x 7385
Negative:
-1 x -12547115-5 x -2509423-7 x -1792445-35 x -358489-211 x -59465-1055 x -11893-1477 x -8495-1699 x -7385
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 12,547,115, 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 | 12,547,115 | |
| -1 | -12,547,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,547,115.
Example:
1 x 12,547,115 = 12,547,115
and
-1 x -12,547,115 = 12,547,115
Notice both answers equal 12,547,115
With that explanation out of the way, let's continue. Next, we take the number 12,547,115 and divide it by 2:
12,547,115 ÷ 2 = 6,273,557.5
If the quotient is a whole number, then 2 and 6,273,557.5 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 | 12,547,115 | |
| -1 | -12,547,115 |
Now, we try dividing 12,547,115 by 3:
12,547,115 ÷ 3 = 4,182,371.6667
If the quotient is a whole number, then 3 and 4,182,371.6667 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 | 12,547,115 | |
| -1 | -12,547,115 |
Let's try dividing by 4:
12,547,115 ÷ 4 = 3,136,778.75
If the quotient is a whole number, then 4 and 3,136,778.75 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 | 12,547,115 | |
| -1 | 12,547,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 211 | 1,055 | 1,477 | 1,699 | 7,385 | 8,495 | 11,893 | 59,465 | 358,489 | 1,792,445 | 2,509,423 | 12,547,115 |
| -1 | -5 | -7 | -35 | -211 | -1,055 | -1,477 | -1,699 | -7,385 | -8,495 | -11,893 | -59,465 | -358,489 | -1,792,445 | -2,509,423 | -12,547,115 |
Here are some more numbers to try:
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