A:
Positive:
1 x 1553015455 x 310603097 x 2218593517 x 913538535 x 443718785 x 1827077119 x 1305055595 x 261011
Negative:
-1 x -155301545-5 x -31060309-7 x -22185935-17 x -9135385-35 x -4437187-85 x -1827077-119 x -1305055-595 x -261011
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 155,301,545, 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 | 155,301,545 | |
| -1 | -155,301,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,301,545.
Example:
1 x 155,301,545 = 155,301,545
and
-1 x -155,301,545 = 155,301,545
Notice both answers equal 155,301,545
With that explanation out of the way, let's continue. Next, we take the number 155,301,545 and divide it by 2:
155,301,545 ÷ 2 = 77,650,772.5
If the quotient is a whole number, then 2 and 77,650,772.5 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 | 155,301,545 | |
| -1 | -155,301,545 |
Now, we try dividing 155,301,545 by 3:
155,301,545 ÷ 3 = 51,767,181.6667
If the quotient is a whole number, then 3 and 51,767,181.6667 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 | 155,301,545 | |
| -1 | -155,301,545 |
Let's try dividing by 4:
155,301,545 ÷ 4 = 38,825,386.25
If the quotient is a whole number, then 4 and 38,825,386.25 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 | 155,301,545 | |
| -1 | 155,301,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 85 | 119 | 595 | 261,011 | 1,305,055 | 1,827,077 | 4,437,187 | 9,135,385 | 22,185,935 | 31,060,309 | 155,301,545 |
| -1 | -5 | -7 | -17 | -35 | -85 | -119 | -595 | -261,011 | -1,305,055 | -1,827,077 | -4,437,187 | -9,135,385 | -22,185,935 | -31,060,309 | -155,301,545 |
Here are some more numbers to try:
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