A:
Positive:
1 x 5134264311 x 466751337 x 1387639101 x 508343407 x 1261491111 x 462131249 x 411073737 x 13739
Negative:
-1 x -51342643-11 x -4667513-37 x -1387639-101 x -508343-407 x -126149-1111 x -46213-1249 x -41107-3737 x -13739
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 51,342,643, 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 | 51,342,643 | |
| -1 | -51,342,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,342,643.
Example:
1 x 51,342,643 = 51,342,643
and
-1 x -51,342,643 = 51,342,643
Notice both answers equal 51,342,643
With that explanation out of the way, let's continue. Next, we take the number 51,342,643 and divide it by 2:
51,342,643 ÷ 2 = 25,671,321.5
If the quotient is a whole number, then 2 and 25,671,321.5 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 | 51,342,643 | |
| -1 | -51,342,643 |
Now, we try dividing 51,342,643 by 3:
51,342,643 ÷ 3 = 17,114,214.3333
If the quotient is a whole number, then 3 and 17,114,214.3333 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 | 51,342,643 | |
| -1 | -51,342,643 |
Let's try dividing by 4:
51,342,643 ÷ 4 = 12,835,660.75
If the quotient is a whole number, then 4 and 12,835,660.75 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 | 51,342,643 | |
| -1 | 51,342,643 |
If you did it right, you will end up with this table:
| 1 | 11 | 37 | 101 | 407 | 1,111 | 1,249 | 3,737 | 13,739 | 41,107 | 46,213 | 126,149 | 508,343 | 1,387,639 | 4,667,513 | 51,342,643 |
| -1 | -11 | -37 | -101 | -407 | -1,111 | -1,249 | -3,737 | -13,739 | -41,107 | -46,213 | -126,149 | -508,343 | -1,387,639 | -4,667,513 | -51,342,643 |
Here are some more numbers to try:
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