A:
Positive:
1 x 5014252111 x 455841113 x 3857117121 x 414401127 x 394823143 x 350647251 x 1997711397 x 358931573 x 318771651 x 303712761 x 181613263 x 15367
Negative:
-1 x -50142521-11 x -4558411-13 x -3857117-121 x -414401-127 x -394823-143 x -350647-251 x -199771-1397 x -35893-1573 x -31877-1651 x -30371-2761 x -18161-3263 x -15367
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 50,142,521, 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 | 50,142,521 | |
| -1 | -50,142,521 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 50,142,521.
Example:
1 x 50,142,521 = 50,142,521
and
-1 x -50,142,521 = 50,142,521
Notice both answers equal 50,142,521
With that explanation out of the way, let's continue. Next, we take the number 50,142,521 and divide it by 2:
50,142,521 ÷ 2 = 25,071,260.5
If the quotient is a whole number, then 2 and 25,071,260.5 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 | 50,142,521 | |
| -1 | -50,142,521 |
Now, we try dividing 50,142,521 by 3:
50,142,521 ÷ 3 = 16,714,173.6667
If the quotient is a whole number, then 3 and 16,714,173.6667 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 | 50,142,521 | |
| -1 | -50,142,521 |
Let's try dividing by 4:
50,142,521 ÷ 4 = 12,535,630.25
If the quotient is a whole number, then 4 and 12,535,630.25 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 | 50,142,521 | |
| -1 | 50,142,521 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 121 | 127 | 143 | 251 | 1,397 | 1,573 | 1,651 | 2,761 | 3,263 | 15,367 | 18,161 | 30,371 | 31,877 | 35,893 | 199,771 | 350,647 | 394,823 | 414,401 | 3,857,117 | 4,558,411 | 50,142,521 |
| -1 | -11 | -13 | -121 | -127 | -143 | -251 | -1,397 | -1,573 | -1,651 | -2,761 | -3,263 | -15,367 | -18,161 | -30,371 | -31,877 | -35,893 | -199,771 | -350,647 | -394,823 | -414,401 | -3,857,117 | -4,558,411 | -50,142,521 |
Here are some more numbers to try:
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