A:
Positive:
1 x 1020303137 x 1457575911 x 927548377 x 1325069359 x 2842072513 x 406013691 x 276433949 x 25837
Negative:
-1 x -102030313-7 x -14575759-11 x -9275483-77 x -1325069-359 x -284207-2513 x -40601-3691 x -27643-3949 x -25837
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 102,030,313, 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 | 102,030,313 | |
| -1 | -102,030,313 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,030,313.
Example:
1 x 102,030,313 = 102,030,313
and
-1 x -102,030,313 = 102,030,313
Notice both answers equal 102,030,313
With that explanation out of the way, let's continue. Next, we take the number 102,030,313 and divide it by 2:
102,030,313 ÷ 2 = 51,015,156.5
If the quotient is a whole number, then 2 and 51,015,156.5 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 | 102,030,313 | |
| -1 | -102,030,313 |
Now, we try dividing 102,030,313 by 3:
102,030,313 ÷ 3 = 34,010,104.3333
If the quotient is a whole number, then 3 and 34,010,104.3333 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 | 102,030,313 | |
| -1 | -102,030,313 |
Let's try dividing by 4:
102,030,313 ÷ 4 = 25,507,578.25
If the quotient is a whole number, then 4 and 25,507,578.25 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 | 102,030,313 | |
| -1 | 102,030,313 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 359 | 2,513 | 3,691 | 3,949 | 25,837 | 27,643 | 40,601 | 284,207 | 1,325,069 | 9,275,483 | 14,575,759 | 102,030,313 |
| -1 | -7 | -11 | -77 | -359 | -2,513 | -3,691 | -3,949 | -25,837 | -27,643 | -40,601 | -284,207 | -1,325,069 | -9,275,483 | -14,575,759 | -102,030,313 |
Here are some more numbers to try:
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