A:
Positive:
1 x 1559299755 x 3118599525 x 623719953 x 2942075137 x 1138175265 x 588415685 x 227635859 x 1815251325 x 1176833425 x 455274295 x 363057261 x 21475
Negative:
-1 x -155929975-5 x -31185995-25 x -6237199-53 x -2942075-137 x -1138175-265 x -588415-685 x -227635-859 x -181525-1325 x -117683-3425 x -45527-4295 x -36305-7261 x -21475
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 155,929,975, 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 | 155,929,975 | |
| -1 | -155,929,975 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,929,975.
Example:
1 x 155,929,975 = 155,929,975
and
-1 x -155,929,975 = 155,929,975
Notice both answers equal 155,929,975
With that explanation out of the way, let's continue. Next, we take the number 155,929,975 and divide it by 2:
155,929,975 ÷ 2 = 77,964,987.5
If the quotient is a whole number, then 2 and 77,964,987.5 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 | 155,929,975 | |
| -1 | -155,929,975 |
Now, we try dividing 155,929,975 by 3:
155,929,975 ÷ 3 = 51,976,658.3333
If the quotient is a whole number, then 3 and 51,976,658.3333 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 | 155,929,975 | |
| -1 | -155,929,975 |
Let's try dividing by 4:
155,929,975 ÷ 4 = 38,982,493.75
If the quotient is a whole number, then 4 and 38,982,493.75 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 | 155,929,975 | |
| -1 | 155,929,975 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 53 | 137 | 265 | 685 | 859 | 1,325 | 3,425 | 4,295 | 7,261 | 21,475 | 36,305 | 45,527 | 117,683 | 181,525 | 227,635 | 588,415 | 1,138,175 | 2,942,075 | 6,237,199 | 31,185,995 | 155,929,975 |
| -1 | -5 | -25 | -53 | -137 | -265 | -685 | -859 | -1,325 | -3,425 | -4,295 | -7,261 | -21,475 | -36,305 | -45,527 | -117,683 | -181,525 | -227,635 | -588,415 | -1,138,175 | -2,942,075 | -6,237,199 | -31,185,995 | -155,929,975 |
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