A:
Positive:
1 x 647112555 x 129422517 x 924446535 x 1848893223 x 2901851115 x 580371561 x 414557805 x 8291
Negative:
-1 x -64711255-5 x -12942251-7 x -9244465-35 x -1848893-223 x -290185-1115 x -58037-1561 x -41455-7805 x -8291
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 64,711,255, 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 | 64,711,255 | |
| -1 | -64,711,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,711,255.
Example:
1 x 64,711,255 = 64,711,255
and
-1 x -64,711,255 = 64,711,255
Notice both answers equal 64,711,255
With that explanation out of the way, let's continue. Next, we take the number 64,711,255 and divide it by 2:
64,711,255 ÷ 2 = 32,355,627.5
If the quotient is a whole number, then 2 and 32,355,627.5 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 | 64,711,255 | |
| -1 | -64,711,255 |
Now, we try dividing 64,711,255 by 3:
64,711,255 ÷ 3 = 21,570,418.3333
If the quotient is a whole number, then 3 and 21,570,418.3333 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 | 64,711,255 | |
| -1 | -64,711,255 |
Let's try dividing by 4:
64,711,255 ÷ 4 = 16,177,813.75
If the quotient is a whole number, then 4 and 16,177,813.75 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 | 64,711,255 | |
| -1 | 64,711,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 223 | 1,115 | 1,561 | 7,805 | 8,291 | 41,455 | 58,037 | 290,185 | 1,848,893 | 9,244,465 | 12,942,251 | 64,711,255 |
| -1 | -5 | -7 | -35 | -223 | -1,115 | -1,561 | -7,805 | -8,291 | -41,455 | -58,037 | -290,185 | -1,848,893 | -9,244,465 | -12,942,251 | -64,711,255 |
Here are some more numbers to try:
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