A:
Positive:
1 x 1550112417 x 2214446311 x 1409193137 x 418949377 x 2013133259 x 598499407 x 3808632849 x 54409
Negative:
-1 x -155011241-7 x -22144463-11 x -14091931-37 x -4189493-77 x -2013133-259 x -598499-407 x -380863-2849 x -54409
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 155,011,241, 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 | 155,011,241 | |
| -1 | -155,011,241 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,011,241.
Example:
1 x 155,011,241 = 155,011,241
and
-1 x -155,011,241 = 155,011,241
Notice both answers equal 155,011,241
With that explanation out of the way, let's continue. Next, we take the number 155,011,241 and divide it by 2:
155,011,241 ÷ 2 = 77,505,620.5
If the quotient is a whole number, then 2 and 77,505,620.5 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 | 155,011,241 | |
| -1 | -155,011,241 |
Now, we try dividing 155,011,241 by 3:
155,011,241 ÷ 3 = 51,670,413.6667
If the quotient is a whole number, then 3 and 51,670,413.6667 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 | 155,011,241 | |
| -1 | -155,011,241 |
Let's try dividing by 4:
155,011,241 ÷ 4 = 38,752,810.25
If the quotient is a whole number, then 4 and 38,752,810.25 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 | 155,011,241 | |
| -1 | 155,011,241 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 37 | 77 | 259 | 407 | 2,849 | 54,409 | 380,863 | 598,499 | 2,013,133 | 4,189,493 | 14,091,931 | 22,144,463 | 155,011,241 |
| -1 | -7 | -11 | -37 | -77 | -259 | -407 | -2,849 | -54,409 | -380,863 | -598,499 | -2,013,133 | -4,189,493 | -14,091,931 | -22,144,463 | -155,011,241 |
Here are some more numbers to try:
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