A:
Positive:
1 x 6053160197 x 8647371711 x 5502872977 x 78612471783 x 3394934409 x 13729112481 x 4849919613 x 30863
Negative:
-1 x -605316019-7 x -86473717-11 x -55028729-77 x -7861247-1783 x -339493-4409 x -137291-12481 x -48499-19613 x -30863
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 605,316,019, 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 | 605,316,019 | |
| -1 | -605,316,019 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 605,316,019.
Example:
1 x 605,316,019 = 605,316,019
and
-1 x -605,316,019 = 605,316,019
Notice both answers equal 605,316,019
With that explanation out of the way, let's continue. Next, we take the number 605,316,019 and divide it by 2:
605,316,019 ÷ 2 = 302,658,009.5
If the quotient is a whole number, then 2 and 302,658,009.5 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 | 605,316,019 | |
| -1 | -605,316,019 |
Now, we try dividing 605,316,019 by 3:
605,316,019 ÷ 3 = 201,772,006.3333
If the quotient is a whole number, then 3 and 201,772,006.3333 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 | 605,316,019 | |
| -1 | -605,316,019 |
Let's try dividing by 4:
605,316,019 ÷ 4 = 151,329,004.75
If the quotient is a whole number, then 4 and 151,329,004.75 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 | 605,316,019 | |
| -1 | 605,316,019 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 1,783 | 4,409 | 12,481 | 19,613 | 30,863 | 48,499 | 137,291 | 339,493 | 7,861,247 | 55,028,729 | 86,473,717 | 605,316,019 |
| -1 | -7 | -11 | -77 | -1,783 | -4,409 | -12,481 | -19,613 | -30,863 | -48,499 | -137,291 | -339,493 | -7,861,247 | -55,028,729 | -86,473,717 | -605,316,019 |
Here are some more numbers to try:
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