A:
Positive:
1 x 1512392055 x 3024784113 x 1163378529 x 521514565 x 2326757145 x 1043029377 x 4011651885 x 80233
Negative:
-1 x -151239205-5 x -30247841-13 x -11633785-29 x -5215145-65 x -2326757-145 x -1043029-377 x -401165-1885 x -80233
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 151,239,205, 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 | 151,239,205 | |
| -1 | -151,239,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,239,205.
Example:
1 x 151,239,205 = 151,239,205
and
-1 x -151,239,205 = 151,239,205
Notice both answers equal 151,239,205
With that explanation out of the way, let's continue. Next, we take the number 151,239,205 and divide it by 2:
151,239,205 ÷ 2 = 75,619,602.5
If the quotient is a whole number, then 2 and 75,619,602.5 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 | 151,239,205 | |
| -1 | -151,239,205 |
Now, we try dividing 151,239,205 by 3:
151,239,205 ÷ 3 = 50,413,068.3333
If the quotient is a whole number, then 3 and 50,413,068.3333 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 | 151,239,205 | |
| -1 | -151,239,205 |
Let's try dividing by 4:
151,239,205 ÷ 4 = 37,809,801.25
If the quotient is a whole number, then 4 and 37,809,801.25 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 | 151,239,205 | |
| -1 | 151,239,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 29 | 65 | 145 | 377 | 1,885 | 80,233 | 401,165 | 1,043,029 | 2,326,757 | 5,215,145 | 11,633,785 | 30,247,841 | 151,239,205 |
| -1 | -5 | -13 | -29 | -65 | -145 | -377 | -1,885 | -80,233 | -401,165 | -1,043,029 | -2,326,757 | -5,215,145 | -11,633,785 | -30,247,841 | -151,239,205 |
Here are some more numbers to try:
Try the factor calculator