A:
Positive:
1 x 1325122711 x 120465719 x 69743347 x 28194171 x 186637209 x 63403361 x 36707517 x 25631781 x 16967893 x 148391349 x 98233337 x 3971
Negative:
-1 x -13251227-11 x -1204657-19 x -697433-47 x -281941-71 x -186637-209 x -63403-361 x -36707-517 x -25631-781 x -16967-893 x -14839-1349 x -9823-3337 x -3971
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 13,251,227, 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 | 13,251,227 | |
| -1 | -13,251,227 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,251,227.
Example:
1 x 13,251,227 = 13,251,227
and
-1 x -13,251,227 = 13,251,227
Notice both answers equal 13,251,227
With that explanation out of the way, let's continue. Next, we take the number 13,251,227 and divide it by 2:
13,251,227 ÷ 2 = 6,625,613.5
If the quotient is a whole number, then 2 and 6,625,613.5 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 | 13,251,227 | |
| -1 | -13,251,227 |
Now, we try dividing 13,251,227 by 3:
13,251,227 ÷ 3 = 4,417,075.6667
If the quotient is a whole number, then 3 and 4,417,075.6667 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 | 13,251,227 | |
| -1 | -13,251,227 |
Let's try dividing by 4:
13,251,227 ÷ 4 = 3,312,806.75
If the quotient is a whole number, then 4 and 3,312,806.75 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 | 13,251,227 | |
| -1 | 13,251,227 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 47 | 71 | 209 | 361 | 517 | 781 | 893 | 1,349 | 3,337 | 3,971 | 9,823 | 14,839 | 16,967 | 25,631 | 36,707 | 63,403 | 186,637 | 281,941 | 697,433 | 1,204,657 | 13,251,227 |
| -1 | -11 | -19 | -47 | -71 | -209 | -361 | -517 | -781 | -893 | -1,349 | -3,337 | -3,971 | -9,823 | -14,839 | -16,967 | -25,631 | -36,707 | -63,403 | -186,637 | -281,941 | -697,433 | -1,204,657 | -13,251,227 |
Here are some more numbers to try:
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