A:
Positive:
1 x 5150566311 x 468233331 x 1661473131 x 393173341 x 1510431153 x 446711441 x 357434061 x 12683
Negative:
-1 x -51505663-11 x -4682333-31 x -1661473-131 x -393173-341 x -151043-1153 x -44671-1441 x -35743-4061 x -12683
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 51,505,663, 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 | 51,505,663 | |
| -1 | -51,505,663 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,505,663.
Example:
1 x 51,505,663 = 51,505,663
and
-1 x -51,505,663 = 51,505,663
Notice both answers equal 51,505,663
With that explanation out of the way, let's continue. Next, we take the number 51,505,663 and divide it by 2:
51,505,663 ÷ 2 = 25,752,831.5
If the quotient is a whole number, then 2 and 25,752,831.5 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 | 51,505,663 | |
| -1 | -51,505,663 |
Now, we try dividing 51,505,663 by 3:
51,505,663 ÷ 3 = 17,168,554.3333
If the quotient is a whole number, then 3 and 17,168,554.3333 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 | 51,505,663 | |
| -1 | -51,505,663 |
Let's try dividing by 4:
51,505,663 ÷ 4 = 12,876,415.75
If the quotient is a whole number, then 4 and 12,876,415.75 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 | 51,505,663 | |
| -1 | 51,505,663 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 131 | 341 | 1,153 | 1,441 | 4,061 | 12,683 | 35,743 | 44,671 | 151,043 | 393,173 | 1,661,473 | 4,682,333 | 51,505,663 |
| -1 | -11 | -31 | -131 | -341 | -1,153 | -1,441 | -4,061 | -12,683 | -35,743 | -44,671 | -151,043 | -393,173 | -1,661,473 | -4,682,333 | -51,505,663 |
Here are some more numbers to try:
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