A:
Positive:
1 x 723470655 x 144694137 x 1033529535 x 2067059911 x 794152269 x 318854555 x 158836377 x 11345
Negative:
-1 x -72347065-5 x -14469413-7 x -10335295-35 x -2067059-911 x -79415-2269 x -31885-4555 x -15883-6377 x -11345
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 72,347,065, 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 | 72,347,065 | |
| -1 | -72,347,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,347,065.
Example:
1 x 72,347,065 = 72,347,065
and
-1 x -72,347,065 = 72,347,065
Notice both answers equal 72,347,065
With that explanation out of the way, let's continue. Next, we take the number 72,347,065 and divide it by 2:
72,347,065 ÷ 2 = 36,173,532.5
If the quotient is a whole number, then 2 and 36,173,532.5 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 | 72,347,065 | |
| -1 | -72,347,065 |
Now, we try dividing 72,347,065 by 3:
72,347,065 ÷ 3 = 24,115,688.3333
If the quotient is a whole number, then 3 and 24,115,688.3333 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 | 72,347,065 | |
| -1 | -72,347,065 |
Let's try dividing by 4:
72,347,065 ÷ 4 = 18,086,766.25
If the quotient is a whole number, then 4 and 18,086,766.25 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 | 72,347,065 | |
| -1 | 72,347,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 911 | 2,269 | 4,555 | 6,377 | 11,345 | 15,883 | 31,885 | 79,415 | 2,067,059 | 10,335,295 | 14,469,413 | 72,347,065 |
| -1 | -5 | -7 | -35 | -911 | -2,269 | -4,555 | -6,377 | -11,345 | -15,883 | -31,885 | -79,415 | -2,067,059 | -10,335,295 | -14,469,413 | -72,347,065 |
Here are some more numbers to try:
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