A:
Positive:
1 x 1292625113 x 99432719 x 68032959 x 219089247 x 52333767 x 16853887 x 145731121 x 11531
Negative:
-1 x -12926251-13 x -994327-19 x -680329-59 x -219089-247 x -52333-767 x -16853-887 x -14573-1121 x -11531
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 12,926,251, 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 | 12,926,251 | |
| -1 | -12,926,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,926,251.
Example:
1 x 12,926,251 = 12,926,251
and
-1 x -12,926,251 = 12,926,251
Notice both answers equal 12,926,251
With that explanation out of the way, let's continue. Next, we take the number 12,926,251 and divide it by 2:
12,926,251 ÷ 2 = 6,463,125.5
If the quotient is a whole number, then 2 and 6,463,125.5 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 | 12,926,251 | |
| -1 | -12,926,251 |
Now, we try dividing 12,926,251 by 3:
12,926,251 ÷ 3 = 4,308,750.3333
If the quotient is a whole number, then 3 and 4,308,750.3333 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 | 12,926,251 | |
| -1 | -12,926,251 |
Let's try dividing by 4:
12,926,251 ÷ 4 = 3,231,562.75
If the quotient is a whole number, then 4 and 3,231,562.75 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 | 12,926,251 | |
| -1 | 12,926,251 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 59 | 247 | 767 | 887 | 1,121 | 11,531 | 14,573 | 16,853 | 52,333 | 219,089 | 680,329 | 994,327 | 12,926,251 |
| -1 | -13 | -19 | -59 | -247 | -767 | -887 | -1,121 | -11,531 | -14,573 | -16,853 | -52,333 | -219,089 | -680,329 | -994,327 | -12,926,251 |
Here are some more numbers to try:
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