A:
Positive:
1 x 2015542555 x 403108517 x 2879346535 x 5758693251 x 8030051255 x 1606011757 x 1147158785 x 22943
Negative:
-1 x -201554255-5 x -40310851-7 x -28793465-35 x -5758693-251 x -803005-1255 x -160601-1757 x -114715-8785 x -22943
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 201,554,255, 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 | 201,554,255 | |
| -1 | -201,554,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,554,255.
Example:
1 x 201,554,255 = 201,554,255
and
-1 x -201,554,255 = 201,554,255
Notice both answers equal 201,554,255
With that explanation out of the way, let's continue. Next, we take the number 201,554,255 and divide it by 2:
201,554,255 ÷ 2 = 100,777,127.5
If the quotient is a whole number, then 2 and 100,777,127.5 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 | 201,554,255 | |
| -1 | -201,554,255 |
Now, we try dividing 201,554,255 by 3:
201,554,255 ÷ 3 = 67,184,751.6667
If the quotient is a whole number, then 3 and 67,184,751.6667 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 | 201,554,255 | |
| -1 | -201,554,255 |
Let's try dividing by 4:
201,554,255 ÷ 4 = 50,388,563.75
If the quotient is a whole number, then 4 and 50,388,563.75 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 | 201,554,255 | |
| -1 | 201,554,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 251 | 1,255 | 1,757 | 8,785 | 22,943 | 114,715 | 160,601 | 803,005 | 5,758,693 | 28,793,465 | 40,310,851 | 201,554,255 |
| -1 | -5 | -7 | -35 | -251 | -1,255 | -1,757 | -8,785 | -22,943 | -114,715 | -160,601 | -803,005 | -5,758,693 | -28,793,465 | -40,310,851 | -201,554,255 |
Here are some more numbers to try:
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