A:
Positive:
1 x 1010207455 x 202041497 x 1443153535 x 2886307691 x 1461953455 x 292394177 x 241854837 x 20885
Negative:
-1 x -101020745-5 x -20204149-7 x -14431535-35 x -2886307-691 x -146195-3455 x -29239-4177 x -24185-4837 x -20885
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 101,020,745, 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 | 101,020,745 | |
| -1 | -101,020,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 101,020,745.
Example:
1 x 101,020,745 = 101,020,745
and
-1 x -101,020,745 = 101,020,745
Notice both answers equal 101,020,745
With that explanation out of the way, let's continue. Next, we take the number 101,020,745 and divide it by 2:
101,020,745 ÷ 2 = 50,510,372.5
If the quotient is a whole number, then 2 and 50,510,372.5 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 | 101,020,745 | |
| -1 | -101,020,745 |
Now, we try dividing 101,020,745 by 3:
101,020,745 ÷ 3 = 33,673,581.6667
If the quotient is a whole number, then 3 and 33,673,581.6667 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 | 101,020,745 | |
| -1 | -101,020,745 |
Let's try dividing by 4:
101,020,745 ÷ 4 = 25,255,186.25
If the quotient is a whole number, then 4 and 25,255,186.25 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 | 101,020,745 | |
| -1 | 101,020,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 691 | 3,455 | 4,177 | 4,837 | 20,885 | 24,185 | 29,239 | 146,195 | 2,886,307 | 14,431,535 | 20,204,149 | 101,020,745 |
| -1 | -5 | -7 | -35 | -691 | -3,455 | -4,177 | -4,837 | -20,885 | -24,185 | -29,239 | -146,195 | -2,886,307 | -14,431,535 | -20,204,149 | -101,020,745 |
Here are some more numbers to try:
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