A:
Positive:
1 x 751919755 x 1503839525 x 300767997 x 775175101 x 744475307 x 244925485 x 155035505 x 1488951535 x 489852425 x 310072525 x 297797675 x 9797
Negative:
-1 x -75191975-5 x -15038395-25 x -3007679-97 x -775175-101 x -744475-307 x -244925-485 x -155035-505 x -148895-1535 x -48985-2425 x -31007-2525 x -29779-7675 x -9797
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 75,191,975, 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 | 75,191,975 | |
| -1 | -75,191,975 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 75,191,975.
Example:
1 x 75,191,975 = 75,191,975
and
-1 x -75,191,975 = 75,191,975
Notice both answers equal 75,191,975
With that explanation out of the way, let's continue. Next, we take the number 75,191,975 and divide it by 2:
75,191,975 ÷ 2 = 37,595,987.5
If the quotient is a whole number, then 2 and 37,595,987.5 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 | 75,191,975 | |
| -1 | -75,191,975 |
Now, we try dividing 75,191,975 by 3:
75,191,975 ÷ 3 = 25,063,991.6667
If the quotient is a whole number, then 3 and 25,063,991.6667 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 | 75,191,975 | |
| -1 | -75,191,975 |
Let's try dividing by 4:
75,191,975 ÷ 4 = 18,797,993.75
If the quotient is a whole number, then 4 and 18,797,993.75 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 | 75,191,975 | |
| -1 | 75,191,975 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 97 | 101 | 307 | 485 | 505 | 1,535 | 2,425 | 2,525 | 7,675 | 9,797 | 29,779 | 31,007 | 48,985 | 148,895 | 155,035 | 244,925 | 744,475 | 775,175 | 3,007,679 | 15,038,395 | 75,191,975 |
| -1 | -5 | -25 | -97 | -101 | -307 | -485 | -505 | -1,535 | -2,425 | -2,525 | -7,675 | -9,797 | -29,779 | -31,007 | -48,985 | -148,895 | -155,035 | -244,925 | -744,475 | -775,175 | -3,007,679 | -15,038,395 | -75,191,975 |
Here are some more numbers to try:
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