A:
Positive:
1 x 513205217 x 733150323 x 2231327151 x 339871161 x 3187611057 x 485532111 x 243113473 x 14777
Negative:
-1 x -51320521-7 x -7331503-23 x -2231327-151 x -339871-161 x -318761-1057 x -48553-2111 x -24311-3473 x -14777
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 51,320,521, 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 | 51,320,521 | |
| -1 | -51,320,521 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,320,521.
Example:
1 x 51,320,521 = 51,320,521
and
-1 x -51,320,521 = 51,320,521
Notice both answers equal 51,320,521
With that explanation out of the way, let's continue. Next, we take the number 51,320,521 and divide it by 2:
51,320,521 ÷ 2 = 25,660,260.5
If the quotient is a whole number, then 2 and 25,660,260.5 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 | 51,320,521 | |
| -1 | -51,320,521 |
Now, we try dividing 51,320,521 by 3:
51,320,521 ÷ 3 = 17,106,840.3333
If the quotient is a whole number, then 3 and 17,106,840.3333 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 | 51,320,521 | |
| -1 | -51,320,521 |
Let's try dividing by 4:
51,320,521 ÷ 4 = 12,830,130.25
If the quotient is a whole number, then 4 and 12,830,130.25 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 | 51,320,521 | |
| -1 | 51,320,521 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 151 | 161 | 1,057 | 2,111 | 3,473 | 14,777 | 24,311 | 48,553 | 318,761 | 339,871 | 2,231,327 | 7,331,503 | 51,320,521 |
| -1 | -7 | -23 | -151 | -161 | -1,057 | -2,111 | -3,473 | -14,777 | -24,311 | -48,553 | -318,761 | -339,871 | -2,231,327 | -7,331,503 | -51,320,521 |
Here are some more numbers to try:
Try the factor calculator