A:
Positive:
1 x 1350213417 x 1928876313 x 1038625791 x 1483751523 x 2581672837 x 475933661 x 368816799 x 19859
Negative:
-1 x -135021341-7 x -19288763-13 x -10386257-91 x -1483751-523 x -258167-2837 x -47593-3661 x -36881-6799 x -19859
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 135,021,341, 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 | 135,021,341 | |
| -1 | -135,021,341 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 135,021,341.
Example:
1 x 135,021,341 = 135,021,341
and
-1 x -135,021,341 = 135,021,341
Notice both answers equal 135,021,341
With that explanation out of the way, let's continue. Next, we take the number 135,021,341 and divide it by 2:
135,021,341 ÷ 2 = 67,510,670.5
If the quotient is a whole number, then 2 and 67,510,670.5 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 | 135,021,341 | |
| -1 | -135,021,341 |
Now, we try dividing 135,021,341 by 3:
135,021,341 ÷ 3 = 45,007,113.6667
If the quotient is a whole number, then 3 and 45,007,113.6667 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 | 135,021,341 | |
| -1 | -135,021,341 |
Let's try dividing by 4:
135,021,341 ÷ 4 = 33,755,335.25
If the quotient is a whole number, then 4 and 33,755,335.25 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 | 135,021,341 | |
| -1 | 135,021,341 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 523 | 2,837 | 3,661 | 6,799 | 19,859 | 36,881 | 47,593 | 258,167 | 1,483,751 | 10,386,257 | 19,288,763 | 135,021,341 |
| -1 | -7 | -13 | -91 | -523 | -2,837 | -3,661 | -6,799 | -19,859 | -36,881 | -47,593 | -258,167 | -1,483,751 | -10,386,257 | -19,288,763 | -135,021,341 |
Here are some more numbers to try:
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