A:
Positive:
1 x 1513512555 x 3027025111 x 1375920517 x 890301555 x 275184185 x 1780603187 x 809365935 x 161873
Negative:
-1 x -151351255-5 x -30270251-11 x -13759205-17 x -8903015-55 x -2751841-85 x -1780603-187 x -809365-935 x -161873
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 151,351,255, 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 | 151,351,255 | |
| -1 | -151,351,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,351,255.
Example:
1 x 151,351,255 = 151,351,255
and
-1 x -151,351,255 = 151,351,255
Notice both answers equal 151,351,255
With that explanation out of the way, let's continue. Next, we take the number 151,351,255 and divide it by 2:
151,351,255 ÷ 2 = 75,675,627.5
If the quotient is a whole number, then 2 and 75,675,627.5 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 | 151,351,255 | |
| -1 | -151,351,255 |
Now, we try dividing 151,351,255 by 3:
151,351,255 ÷ 3 = 50,450,418.3333
If the quotient is a whole number, then 3 and 50,450,418.3333 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 | 151,351,255 | |
| -1 | -151,351,255 |
Let's try dividing by 4:
151,351,255 ÷ 4 = 37,837,813.75
If the quotient is a whole number, then 4 and 37,837,813.75 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 | 151,351,255 | |
| -1 | 151,351,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 161,873 | 809,365 | 1,780,603 | 2,751,841 | 8,903,015 | 13,759,205 | 30,270,251 | 151,351,255 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -161,873 | -809,365 | -1,780,603 | -2,751,841 | -8,903,015 | -13,759,205 | -30,270,251 | -151,351,255 |
Here are some more numbers to try:
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