A:
Positive:
1 x 6617455 x 1323497 x 9453535 x 1890737 x 1788549 x 1350573 x 9065185 x 3577245 x 2701259 x 2555365 x 1813511 x 1295
Negative:
-1 x -661745-5 x -132349-7 x -94535-35 x -18907-37 x -17885-49 x -13505-73 x -9065-185 x -3577-245 x -2701-259 x -2555-365 x -1813-511 x -1295
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 661,745, 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 | 661,745 | |
| -1 | -661,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 661,745.
Example:
1 x 661,745 = 661,745
and
-1 x -661,745 = 661,745
Notice both answers equal 661,745
With that explanation out of the way, let's continue. Next, we take the number 661,745 and divide it by 2:
661,745 ÷ 2 = 330,872.5
If the quotient is a whole number, then 2 and 330,872.5 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 | 661,745 | |
| -1 | -661,745 |
Now, we try dividing 661,745 by 3:
661,745 ÷ 3 = 220,581.6667
If the quotient is a whole number, then 3 and 220,581.6667 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 | 661,745 | |
| -1 | -661,745 |
Let's try dividing by 4:
661,745 ÷ 4 = 165,436.25
If the quotient is a whole number, then 4 and 165,436.25 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 | 661,745 | |
| -1 | 661,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 37 | 49 | 73 | 185 | 245 | 259 | 365 | 511 | 1,295 | 1,813 | 2,555 | 2,701 | 3,577 | 9,065 | 13,505 | 17,885 | 18,907 | 94,535 | 132,349 | 661,745 |
| -1 | -5 | -7 | -35 | -37 | -49 | -73 | -185 | -245 | -259 | -365 | -511 | -1,295 | -1,813 | -2,555 | -2,701 | -3,577 | -9,065 | -13,505 | -17,885 | -18,907 | -94,535 | -132,349 | -661,745 |
Here are some more numbers to try:
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