A:
Positive:
1 x 177457917 x 253511319 x 93398949 x 362159133 x 133427343 x 51737389 x 45619931 x 190612401 x 73912723 x 6517
Negative:
-1 x -17745791-7 x -2535113-19 x -933989-49 x -362159-133 x -133427-343 x -51737-389 x -45619-931 x -19061-2401 x -7391-2723 x -6517
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 17,745,791, 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 | 17,745,791 | |
| -1 | -17,745,791 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,745,791.
Example:
1 x 17,745,791 = 17,745,791
and
-1 x -17,745,791 = 17,745,791
Notice both answers equal 17,745,791
With that explanation out of the way, let's continue. Next, we take the number 17,745,791 and divide it by 2:
17,745,791 ÷ 2 = 8,872,895.5
If the quotient is a whole number, then 2 and 8,872,895.5 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 | 17,745,791 | |
| -1 | -17,745,791 |
Now, we try dividing 17,745,791 by 3:
17,745,791 ÷ 3 = 5,915,263.6667
If the quotient is a whole number, then 3 and 5,915,263.6667 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 | 17,745,791 | |
| -1 | -17,745,791 |
Let's try dividing by 4:
17,745,791 ÷ 4 = 4,436,447.75
If the quotient is a whole number, then 4 and 4,436,447.75 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 | 17,745,791 | |
| -1 | 17,745,791 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 49 | 133 | 343 | 389 | 931 | 2,401 | 2,723 | 6,517 | 7,391 | 19,061 | 45,619 | 51,737 | 133,427 | 362,159 | 933,989 | 2,535,113 | 17,745,791 |
| -1 | -7 | -19 | -49 | -133 | -343 | -389 | -931 | -2,401 | -2,723 | -6,517 | -7,391 | -19,061 | -45,619 | -51,737 | -133,427 | -362,159 | -933,989 | -2,535,113 | -17,745,791 |
Here are some more numbers to try:
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