A:
Positive:
1 x 71806185113 x 5523552719 x 37792729247 x 2907133361 x 19890914693 x 1530076859 x 1046898053 x 89167
Negative:
-1 x -718061851-13 x -55235527-19 x -37792729-247 x -2907133-361 x -1989091-4693 x -153007-6859 x -104689-8053 x -89167
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 718,061,851, 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 | 718,061,851 | |
| -1 | -718,061,851 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 718,061,851.
Example:
1 x 718,061,851 = 718,061,851
and
-1 x -718,061,851 = 718,061,851
Notice both answers equal 718,061,851
With that explanation out of the way, let's continue. Next, we take the number 718,061,851 and divide it by 2:
718,061,851 ÷ 2 = 359,030,925.5
If the quotient is a whole number, then 2 and 359,030,925.5 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 | 718,061,851 | |
| -1 | -718,061,851 |
Now, we try dividing 718,061,851 by 3:
718,061,851 ÷ 3 = 239,353,950.3333
If the quotient is a whole number, then 3 and 239,353,950.3333 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 | 718,061,851 | |
| -1 | -718,061,851 |
Let's try dividing by 4:
718,061,851 ÷ 4 = 179,515,462.75
If the quotient is a whole number, then 4 and 179,515,462.75 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 | 718,061,851 | |
| -1 | 718,061,851 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 247 | 361 | 4,693 | 6,859 | 8,053 | 89,167 | 104,689 | 153,007 | 1,989,091 | 2,907,133 | 37,792,729 | 55,235,527 | 718,061,851 |
| -1 | -13 | -19 | -247 | -361 | -4,693 | -6,859 | -8,053 | -89,167 | -104,689 | -153,007 | -1,989,091 | -2,907,133 | -37,792,729 | -55,235,527 | -718,061,851 |
Here are some more numbers to try:
Try the factor calculator