A:
Positive:
1 x 7260478455 x 14520956967 x 10836535335 x 2167307653 x 11118653265 x 2223733319 x 21875516595 x 43751
Negative:
-1 x -726047845-5 x -145209569-67 x -10836535-335 x -2167307-653 x -1111865-3265 x -222373-3319 x -218755-16595 x -43751
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 726,047,845, 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 | 726,047,845 | |
| -1 | -726,047,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 726,047,845.
Example:
1 x 726,047,845 = 726,047,845
and
-1 x -726,047,845 = 726,047,845
Notice both answers equal 726,047,845
With that explanation out of the way, let's continue. Next, we take the number 726,047,845 and divide it by 2:
726,047,845 ÷ 2 = 363,023,922.5
If the quotient is a whole number, then 2 and 363,023,922.5 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 | 726,047,845 | |
| -1 | -726,047,845 |
Now, we try dividing 726,047,845 by 3:
726,047,845 ÷ 3 = 242,015,948.3333
If the quotient is a whole number, then 3 and 242,015,948.3333 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 | 726,047,845 | |
| -1 | -726,047,845 |
Let's try dividing by 4:
726,047,845 ÷ 4 = 181,511,961.25
If the quotient is a whole number, then 4 and 181,511,961.25 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 | 726,047,845 | |
| -1 | 726,047,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 335 | 653 | 3,265 | 3,319 | 16,595 | 43,751 | 218,755 | 222,373 | 1,111,865 | 2,167,307 | 10,836,535 | 145,209,569 | 726,047,845 |
| -1 | -5 | -67 | -335 | -653 | -3,265 | -3,319 | -16,595 | -43,751 | -218,755 | -222,373 | -1,111,865 | -2,167,307 | -10,836,535 | -145,209,569 | -726,047,845 |
Here are some more numbers to try:
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