A:
Positive:
1 x 15574236123 x 677140737 x 420925373 x 2133457109 x 1428829529 x 294409851 x 1830111679 x 927592507 x 621232701 x 576614033 x 386177957 x 19573
Negative:
-1 x -155742361-23 x -6771407-37 x -4209253-73 x -2133457-109 x -1428829-529 x -294409-851 x -183011-1679 x -92759-2507 x -62123-2701 x -57661-4033 x -38617-7957 x -19573
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 155,742,361, 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 | 155,742,361 | |
| -1 | -155,742,361 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,742,361.
Example:
1 x 155,742,361 = 155,742,361
and
-1 x -155,742,361 = 155,742,361
Notice both answers equal 155,742,361
With that explanation out of the way, let's continue. Next, we take the number 155,742,361 and divide it by 2:
155,742,361 ÷ 2 = 77,871,180.5
If the quotient is a whole number, then 2 and 77,871,180.5 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 | 155,742,361 | |
| -1 | -155,742,361 |
Now, we try dividing 155,742,361 by 3:
155,742,361 ÷ 3 = 51,914,120.3333
If the quotient is a whole number, then 3 and 51,914,120.3333 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 | 155,742,361 | |
| -1 | -155,742,361 |
Let's try dividing by 4:
155,742,361 ÷ 4 = 38,935,590.25
If the quotient is a whole number, then 4 and 38,935,590.25 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 | 155,742,361 | |
| -1 | 155,742,361 |
If you did it right, you will end up with this table:
| 1 | 23 | 37 | 73 | 109 | 529 | 851 | 1,679 | 2,507 | 2,701 | 4,033 | 7,957 | 19,573 | 38,617 | 57,661 | 62,123 | 92,759 | 183,011 | 294,409 | 1,428,829 | 2,133,457 | 4,209,253 | 6,771,407 | 155,742,361 |
| -1 | -23 | -37 | -73 | -109 | -529 | -851 | -1,679 | -2,507 | -2,701 | -4,033 | -7,957 | -19,573 | -38,617 | -57,661 | -62,123 | -92,759 | -183,011 | -294,409 | -1,428,829 | -2,133,457 | -4,209,253 | -6,771,407 | -155,742,361 |
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