A:
Positive:
1 x 1551341055 x 310268217 x 2216201535 x 4432403953 x 1627854651 x 333554765 x 325576671 x 23255
Negative:
-1 x -155134105-5 x -31026821-7 x -22162015-35 x -4432403-953 x -162785-4651 x -33355-4765 x -32557-6671 x -23255
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 155,134,105, 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 | 155,134,105 | |
| -1 | -155,134,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,134,105.
Example:
1 x 155,134,105 = 155,134,105
and
-1 x -155,134,105 = 155,134,105
Notice both answers equal 155,134,105
With that explanation out of the way, let's continue. Next, we take the number 155,134,105 and divide it by 2:
155,134,105 ÷ 2 = 77,567,052.5
If the quotient is a whole number, then 2 and 77,567,052.5 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 | 155,134,105 | |
| -1 | -155,134,105 |
Now, we try dividing 155,134,105 by 3:
155,134,105 ÷ 3 = 51,711,368.3333
If the quotient is a whole number, then 3 and 51,711,368.3333 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 | 155,134,105 | |
| -1 | -155,134,105 |
Let's try dividing by 4:
155,134,105 ÷ 4 = 38,783,526.25
If the quotient is a whole number, then 4 and 38,783,526.25 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 | 155,134,105 | |
| -1 | 155,134,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 953 | 4,651 | 4,765 | 6,671 | 23,255 | 32,557 | 33,355 | 162,785 | 4,432,403 | 22,162,015 | 31,026,821 | 155,134,105 |
| -1 | -5 | -7 | -35 | -953 | -4,651 | -4,765 | -6,671 | -23,255 | -32,557 | -33,355 | -162,785 | -4,432,403 | -22,162,015 | -31,026,821 | -155,134,105 |
Here are some more numbers to try:
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