A:
Positive:
1 x 15524169713 x 1194166923 x 6749639167 x 929591299 x 5192032171 x 715073109 x 499333841 x 40417
Negative:
-1 x -155241697-13 x -11941669-23 x -6749639-167 x -929591-299 x -519203-2171 x -71507-3109 x -49933-3841 x -40417
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 155,241,697, 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 | 155,241,697 | |
| -1 | -155,241,697 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,241,697.
Example:
1 x 155,241,697 = 155,241,697
and
-1 x -155,241,697 = 155,241,697
Notice both answers equal 155,241,697
With that explanation out of the way, let's continue. Next, we take the number 155,241,697 and divide it by 2:
155,241,697 ÷ 2 = 77,620,848.5
If the quotient is a whole number, then 2 and 77,620,848.5 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 | 155,241,697 | |
| -1 | -155,241,697 |
Now, we try dividing 155,241,697 by 3:
155,241,697 ÷ 3 = 51,747,232.3333
If the quotient is a whole number, then 3 and 51,747,232.3333 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 | 155,241,697 | |
| -1 | -155,241,697 |
Let's try dividing by 4:
155,241,697 ÷ 4 = 38,810,424.25
If the quotient is a whole number, then 4 and 38,810,424.25 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 | 155,241,697 | |
| -1 | 155,241,697 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 167 | 299 | 2,171 | 3,109 | 3,841 | 40,417 | 49,933 | 71,507 | 519,203 | 929,591 | 6,749,639 | 11,941,669 | 155,241,697 |
| -1 | -13 | -23 | -167 | -299 | -2,171 | -3,109 | -3,841 | -40,417 | -49,933 | -71,507 | -519,203 | -929,591 | -6,749,639 | -11,941,669 | -155,241,697 |
Here are some more numbers to try:
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