A:
Positive:
1 x 64146013317 x 3773294923 x 27889571391 x 1640563863 x 7432911901 x 33743314671 x 4372319849 x 32317
Negative:
-1 x -641460133-17 x -37732949-23 x -27889571-391 x -1640563-863 x -743291-1901 x -337433-14671 x -43723-19849 x -32317
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 641,460,133, 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 | 641,460,133 | |
| -1 | -641,460,133 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 641,460,133.
Example:
1 x 641,460,133 = 641,460,133
and
-1 x -641,460,133 = 641,460,133
Notice both answers equal 641,460,133
With that explanation out of the way, let's continue. Next, we take the number 641,460,133 and divide it by 2:
641,460,133 ÷ 2 = 320,730,066.5
If the quotient is a whole number, then 2 and 320,730,066.5 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 | 641,460,133 | |
| -1 | -641,460,133 |
Now, we try dividing 641,460,133 by 3:
641,460,133 ÷ 3 = 213,820,044.3333
If the quotient is a whole number, then 3 and 213,820,044.3333 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 | 641,460,133 | |
| -1 | -641,460,133 |
Let's try dividing by 4:
641,460,133 ÷ 4 = 160,365,033.25
If the quotient is a whole number, then 4 and 160,365,033.25 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 | 641,460,133 | |
| -1 | 641,460,133 |
If you did it right, you will end up with this table:
| 1 | 17 | 23 | 391 | 863 | 1,901 | 14,671 | 19,849 | 32,317 | 43,723 | 337,433 | 743,291 | 1,640,563 | 27,889,571 | 37,732,949 | 641,460,133 |
| -1 | -17 | -23 | -391 | -863 | -1,901 | -14,671 | -19,849 | -32,317 | -43,723 | -337,433 | -743,291 | -1,640,563 | -27,889,571 | -37,732,949 | -641,460,133 |
Here are some more numbers to try:
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