A:
Positive:
1 x 6123711237 x 8748158913 x 4710547191 x 6729353967 x 6332696769 x 904676959 x 8799712571 x 48713
Negative:
-1 x -612371123-7 x -87481589-13 x -47105471-91 x -6729353-967 x -633269-6769 x -90467-6959 x -87997-12571 x -48713
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 612,371,123, 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 | 612,371,123 | |
| -1 | -612,371,123 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 612,371,123.
Example:
1 x 612,371,123 = 612,371,123
and
-1 x -612,371,123 = 612,371,123
Notice both answers equal 612,371,123
With that explanation out of the way, let's continue. Next, we take the number 612,371,123 and divide it by 2:
612,371,123 ÷ 2 = 306,185,561.5
If the quotient is a whole number, then 2 and 306,185,561.5 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 | 612,371,123 | |
| -1 | -612,371,123 |
Now, we try dividing 612,371,123 by 3:
612,371,123 ÷ 3 = 204,123,707.6667
If the quotient is a whole number, then 3 and 204,123,707.6667 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 | 612,371,123 | |
| -1 | -612,371,123 |
Let's try dividing by 4:
612,371,123 ÷ 4 = 153,092,780.75
If the quotient is a whole number, then 4 and 153,092,780.75 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 | 612,371,123 | |
| -1 | 612,371,123 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 967 | 6,769 | 6,959 | 12,571 | 48,713 | 87,997 | 90,467 | 633,269 | 6,729,353 | 47,105,471 | 87,481,589 | 612,371,123 |
| -1 | -7 | -13 | -91 | -967 | -6,769 | -6,959 | -12,571 | -48,713 | -87,997 | -90,467 | -633,269 | -6,729,353 | -47,105,471 | -87,481,589 | -612,371,123 |
Here are some more numbers to try:
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