A:
Positive:
1 x 723066197 x 1032951711 x 657332977 x 939047331 x 2184492317 x 312072837 x 254873641 x 19859
Negative:
-1 x -72306619-7 x -10329517-11 x -6573329-77 x -939047-331 x -218449-2317 x -31207-2837 x -25487-3641 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 72,306,619, 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 | 72,306,619 | |
| -1 | -72,306,619 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,306,619.
Example:
1 x 72,306,619 = 72,306,619
and
-1 x -72,306,619 = 72,306,619
Notice both answers equal 72,306,619
With that explanation out of the way, let's continue. Next, we take the number 72,306,619 and divide it by 2:
72,306,619 ÷ 2 = 36,153,309.5
If the quotient is a whole number, then 2 and 36,153,309.5 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 | 72,306,619 | |
| -1 | -72,306,619 |
Now, we try dividing 72,306,619 by 3:
72,306,619 ÷ 3 = 24,102,206.3333
If the quotient is a whole number, then 3 and 24,102,206.3333 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 | 72,306,619 | |
| -1 | -72,306,619 |
Let's try dividing by 4:
72,306,619 ÷ 4 = 18,076,654.75
If the quotient is a whole number, then 4 and 18,076,654.75 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 | 72,306,619 | |
| -1 | 72,306,619 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 331 | 2,317 | 2,837 | 3,641 | 19,859 | 25,487 | 31,207 | 218,449 | 939,047 | 6,573,329 | 10,329,517 | 72,306,619 |
| -1 | -7 | -11 | -77 | -331 | -2,317 | -2,837 | -3,641 | -19,859 | -25,487 | -31,207 | -218,449 | -939,047 | -6,573,329 | -10,329,517 | -72,306,619 |
Here are some more numbers to try:
Try the factor calculator