A:
Positive:
1 x 7241435397 x 10344907731 x 2335946937 x 19571447217 x 3337067259 x 27959211147 x 6313378029 x 90191
Negative:
-1 x -724143539-7 x -103449077-31 x -23359469-37 x -19571447-217 x -3337067-259 x -2795921-1147 x -631337-8029 x -90191
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 724,143,539, 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 | 724,143,539 | |
| -1 | -724,143,539 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 724,143,539.
Example:
1 x 724,143,539 = 724,143,539
and
-1 x -724,143,539 = 724,143,539
Notice both answers equal 724,143,539
With that explanation out of the way, let's continue. Next, we take the number 724,143,539 and divide it by 2:
724,143,539 ÷ 2 = 362,071,769.5
If the quotient is a whole number, then 2 and 362,071,769.5 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 | 724,143,539 | |
| -1 | -724,143,539 |
Now, we try dividing 724,143,539 by 3:
724,143,539 ÷ 3 = 241,381,179.6667
If the quotient is a whole number, then 3 and 241,381,179.6667 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 | 724,143,539 | |
| -1 | -724,143,539 |
Let's try dividing by 4:
724,143,539 ÷ 4 = 181,035,884.75
If the quotient is a whole number, then 4 and 181,035,884.75 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 | 724,143,539 | |
| -1 | 724,143,539 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 37 | 217 | 259 | 1,147 | 8,029 | 90,191 | 631,337 | 2,795,921 | 3,337,067 | 19,571,447 | 23,359,469 | 103,449,077 | 724,143,539 |
| -1 | -7 | -31 | -37 | -217 | -259 | -1,147 | -8,029 | -90,191 | -631,337 | -2,795,921 | -3,337,067 | -19,571,447 | -23,359,469 | -103,449,077 | -724,143,539 |
Here are some more numbers to try:
Try the factor calculator