A:
Positive:
1 x 515213517 x 736019379 x 652169151 x 341201553 x 93167617 x 835031057 x 487434319 x 11929
Negative:
-1 x -51521351-7 x -7360193-79 x -652169-151 x -341201-553 x -93167-617 x -83503-1057 x -48743-4319 x -11929
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 51,521,351, 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 | 51,521,351 | |
| -1 | -51,521,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,521,351.
Example:
1 x 51,521,351 = 51,521,351
and
-1 x -51,521,351 = 51,521,351
Notice both answers equal 51,521,351
With that explanation out of the way, let's continue. Next, we take the number 51,521,351 and divide it by 2:
51,521,351 ÷ 2 = 25,760,675.5
If the quotient is a whole number, then 2 and 25,760,675.5 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 | 51,521,351 | |
| -1 | -51,521,351 |
Now, we try dividing 51,521,351 by 3:
51,521,351 ÷ 3 = 17,173,783.6667
If the quotient is a whole number, then 3 and 17,173,783.6667 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 | 51,521,351 | |
| -1 | -51,521,351 |
Let's try dividing by 4:
51,521,351 ÷ 4 = 12,880,337.75
If the quotient is a whole number, then 4 and 12,880,337.75 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 | 51,521,351 | |
| -1 | 51,521,351 |
If you did it right, you will end up with this table:
| 1 | 7 | 79 | 151 | 553 | 617 | 1,057 | 4,319 | 11,929 | 48,743 | 83,503 | 93,167 | 341,201 | 652,169 | 7,360,193 | 51,521,351 |
| -1 | -7 | -79 | -151 | -553 | -617 | -1,057 | -4,319 | -11,929 | -48,743 | -83,503 | -93,167 | -341,201 | -652,169 | -7,360,193 | -51,521,351 |
Here are some more numbers to try:
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