A:
Positive:
1 x 14330551313 x 1102350159 x 2428907257 x 557609727 x 197119767 x 1868393341 x 428939451 x 15163
Negative:
-1 x -143305513-13 x -11023501-59 x -2428907-257 x -557609-727 x -197119-767 x -186839-3341 x -42893-9451 x -15163
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 143,305,513, 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 | 143,305,513 | |
| -1 | -143,305,513 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 143,305,513.
Example:
1 x 143,305,513 = 143,305,513
and
-1 x -143,305,513 = 143,305,513
Notice both answers equal 143,305,513
With that explanation out of the way, let's continue. Next, we take the number 143,305,513 and divide it by 2:
143,305,513 ÷ 2 = 71,652,756.5
If the quotient is a whole number, then 2 and 71,652,756.5 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 | 143,305,513 | |
| -1 | -143,305,513 |
Now, we try dividing 143,305,513 by 3:
143,305,513 ÷ 3 = 47,768,504.3333
If the quotient is a whole number, then 3 and 47,768,504.3333 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 | 143,305,513 | |
| -1 | -143,305,513 |
Let's try dividing by 4:
143,305,513 ÷ 4 = 35,826,378.25
If the quotient is a whole number, then 4 and 35,826,378.25 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 | 143,305,513 | |
| -1 | 143,305,513 |
If you did it right, you will end up with this table:
| 1 | 13 | 59 | 257 | 727 | 767 | 3,341 | 9,451 | 15,163 | 42,893 | 186,839 | 197,119 | 557,609 | 2,428,907 | 11,023,501 | 143,305,513 |
| -1 | -13 | -59 | -257 | -727 | -767 | -3,341 | -9,451 | -15,163 | -42,893 | -186,839 | -197,119 | -557,609 | -2,428,907 | -11,023,501 | -143,305,513 |
Here are some more numbers to try:
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