A:
Positive:
1 x 750142155 x 1500284341 x 1829615101 x 742715205 x 365923505 x 1485433623 x 207054141 x 18115
Negative:
-1 x -75014215-5 x -15002843-41 x -1829615-101 x -742715-205 x -365923-505 x -148543-3623 x -20705-4141 x -18115
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 75,014,215, 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 | 75,014,215 | |
| -1 | -75,014,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 75,014,215.
Example:
1 x 75,014,215 = 75,014,215
and
-1 x -75,014,215 = 75,014,215
Notice both answers equal 75,014,215
With that explanation out of the way, let's continue. Next, we take the number 75,014,215 and divide it by 2:
75,014,215 ÷ 2 = 37,507,107.5
If the quotient is a whole number, then 2 and 37,507,107.5 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 | 75,014,215 | |
| -1 | -75,014,215 |
Now, we try dividing 75,014,215 by 3:
75,014,215 ÷ 3 = 25,004,738.3333
If the quotient is a whole number, then 3 and 25,004,738.3333 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 | 75,014,215 | |
| -1 | -75,014,215 |
Let's try dividing by 4:
75,014,215 ÷ 4 = 18,753,553.75
If the quotient is a whole number, then 4 and 18,753,553.75 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 | 75,014,215 | |
| -1 | 75,014,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 101 | 205 | 505 | 3,623 | 4,141 | 18,115 | 20,705 | 148,543 | 365,923 | 742,715 | 1,829,615 | 15,002,843 | 75,014,215 |
| -1 | -5 | -41 | -101 | -205 | -505 | -3,623 | -4,141 | -18,115 | -20,705 | -148,543 | -365,923 | -742,715 | -1,829,615 | -15,002,843 | -75,014,215 |
Here are some more numbers to try:
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