A:
Positive:
1 x 2031535455 x 406307097 x 2902193535 x 58043871307 x 1554354441 x 457456535 x 310879149 x 22205
Negative:
-1 x -203153545-5 x -40630709-7 x -29021935-35 x -5804387-1307 x -155435-4441 x -45745-6535 x -31087-9149 x -22205
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 203,153,545, 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 | 203,153,545 | |
| -1 | -203,153,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,153,545.
Example:
1 x 203,153,545 = 203,153,545
and
-1 x -203,153,545 = 203,153,545
Notice both answers equal 203,153,545
With that explanation out of the way, let's continue. Next, we take the number 203,153,545 and divide it by 2:
203,153,545 ÷ 2 = 101,576,772.5
If the quotient is a whole number, then 2 and 101,576,772.5 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 | 203,153,545 | |
| -1 | -203,153,545 |
Now, we try dividing 203,153,545 by 3:
203,153,545 ÷ 3 = 67,717,848.3333
If the quotient is a whole number, then 3 and 67,717,848.3333 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 | 203,153,545 | |
| -1 | -203,153,545 |
Let's try dividing by 4:
203,153,545 ÷ 4 = 50,788,386.25
If the quotient is a whole number, then 4 and 50,788,386.25 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 | 203,153,545 | |
| -1 | 203,153,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,307 | 4,441 | 6,535 | 9,149 | 22,205 | 31,087 | 45,745 | 155,435 | 5,804,387 | 29,021,935 | 40,630,709 | 203,153,545 |
| -1 | -5 | -7 | -35 | -1,307 | -4,441 | -6,535 | -9,149 | -22,205 | -31,087 | -45,745 | -155,435 | -5,804,387 | -29,021,935 | -40,630,709 | -203,153,545 |
Here are some more numbers to try:
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