A:
Positive:
1 x 1530015055 x 30600301151 x 1013255191 x 801055755 x 202651955 x 1602111061 x 1442055305 x 28841
Negative:
-1 x -153001505-5 x -30600301-151 x -1013255-191 x -801055-755 x -202651-955 x -160211-1061 x -144205-5305 x -28841
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 153,001,505, 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 | 153,001,505 | |
| -1 | -153,001,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,001,505.
Example:
1 x 153,001,505 = 153,001,505
and
-1 x -153,001,505 = 153,001,505
Notice both answers equal 153,001,505
With that explanation out of the way, let's continue. Next, we take the number 153,001,505 and divide it by 2:
153,001,505 ÷ 2 = 76,500,752.5
If the quotient is a whole number, then 2 and 76,500,752.5 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 | 153,001,505 | |
| -1 | -153,001,505 |
Now, we try dividing 153,001,505 by 3:
153,001,505 ÷ 3 = 51,000,501.6667
If the quotient is a whole number, then 3 and 51,000,501.6667 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 | 153,001,505 | |
| -1 | -153,001,505 |
Let's try dividing by 4:
153,001,505 ÷ 4 = 38,250,376.25
If the quotient is a whole number, then 4 and 38,250,376.25 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 | 153,001,505 | |
| -1 | 153,001,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 151 | 191 | 755 | 955 | 1,061 | 5,305 | 28,841 | 144,205 | 160,211 | 202,651 | 801,055 | 1,013,255 | 30,600,301 | 153,001,505 |
| -1 | -5 | -151 | -191 | -755 | -955 | -1,061 | -5,305 | -28,841 | -144,205 | -160,211 | -202,651 | -801,055 | -1,013,255 | -30,600,301 | -153,001,505 |
Here are some more numbers to try:
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