A:
Positive:
1 x 3800141877 x 5428774153 x 7170079367 x 1035461371 x 10242972569 x 1479232791 x 13615719451 x 19537
Negative:
-1 x -380014187-7 x -54287741-53 x -7170079-367 x -1035461-371 x -1024297-2569 x -147923-2791 x -136157-19451 x -19537
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 380,014,187, 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 | 380,014,187 | |
| -1 | -380,014,187 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 380,014,187.
Example:
1 x 380,014,187 = 380,014,187
and
-1 x -380,014,187 = 380,014,187
Notice both answers equal 380,014,187
With that explanation out of the way, let's continue. Next, we take the number 380,014,187 and divide it by 2:
380,014,187 ÷ 2 = 190,007,093.5
If the quotient is a whole number, then 2 and 190,007,093.5 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 | 380,014,187 | |
| -1 | -380,014,187 |
Now, we try dividing 380,014,187 by 3:
380,014,187 ÷ 3 = 126,671,395.6667
If the quotient is a whole number, then 3 and 126,671,395.6667 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 | 380,014,187 | |
| -1 | -380,014,187 |
Let's try dividing by 4:
380,014,187 ÷ 4 = 95,003,546.75
If the quotient is a whole number, then 4 and 95,003,546.75 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 | 380,014,187 | |
| -1 | 380,014,187 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 367 | 371 | 2,569 | 2,791 | 19,451 | 19,537 | 136,157 | 147,923 | 1,024,297 | 1,035,461 | 7,170,079 | 54,287,741 | 380,014,187 |
| -1 | -7 | -53 | -367 | -371 | -2,569 | -2,791 | -19,451 | -19,537 | -136,157 | -147,923 | -1,024,297 | -1,035,461 | -7,170,079 | -54,287,741 | -380,014,187 |
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