A:
Positive:
1 x 172052237 x 245788949 x 351127103 x 167041343 x 50161487 x 35329721 x 238633409 x 5047
Negative:
-1 x -17205223-7 x -2457889-49 x -351127-103 x -167041-343 x -50161-487 x -35329-721 x -23863-3409 x -5047
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 17,205,223, 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 | 17,205,223 | |
| -1 | -17,205,223 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,205,223.
Example:
1 x 17,205,223 = 17,205,223
and
-1 x -17,205,223 = 17,205,223
Notice both answers equal 17,205,223
With that explanation out of the way, let's continue. Next, we take the number 17,205,223 and divide it by 2:
17,205,223 ÷ 2 = 8,602,611.5
If the quotient is a whole number, then 2 and 8,602,611.5 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 | 17,205,223 | |
| -1 | -17,205,223 |
Now, we try dividing 17,205,223 by 3:
17,205,223 ÷ 3 = 5,735,074.3333
If the quotient is a whole number, then 3 and 5,735,074.3333 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 | 17,205,223 | |
| -1 | -17,205,223 |
Let's try dividing by 4:
17,205,223 ÷ 4 = 4,301,305.75
If the quotient is a whole number, then 4 and 4,301,305.75 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 | 17,205,223 | |
| -1 | 17,205,223 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 103 | 343 | 487 | 721 | 3,409 | 5,047 | 23,863 | 35,329 | 50,161 | 167,041 | 351,127 | 2,457,889 | 17,205,223 |
| -1 | -7 | -49 | -103 | -343 | -487 | -721 | -3,409 | -5,047 | -23,863 | -35,329 | -50,161 | -167,041 | -351,127 | -2,457,889 | -17,205,223 |
Here are some more numbers to try:
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