A:
Positive:
1 x 6480731337 x 175154947 x 137887983 x 780811449 x 1443371739 x 372673071 x 211033901 x 16613
Negative:
-1 x -64807313-37 x -1751549-47 x -1378879-83 x -780811-449 x -144337-1739 x -37267-3071 x -21103-3901 x -16613
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 64,807,313, 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 | 64,807,313 | |
| -1 | -64,807,313 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,807,313.
Example:
1 x 64,807,313 = 64,807,313
and
-1 x -64,807,313 = 64,807,313
Notice both answers equal 64,807,313
With that explanation out of the way, let's continue. Next, we take the number 64,807,313 and divide it by 2:
64,807,313 ÷ 2 = 32,403,656.5
If the quotient is a whole number, then 2 and 32,403,656.5 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 | 64,807,313 | |
| -1 | -64,807,313 |
Now, we try dividing 64,807,313 by 3:
64,807,313 ÷ 3 = 21,602,437.6667
If the quotient is a whole number, then 3 and 21,602,437.6667 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 | 64,807,313 | |
| -1 | -64,807,313 |
Let's try dividing by 4:
64,807,313 ÷ 4 = 16,201,828.25
If the quotient is a whole number, then 4 and 16,201,828.25 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 | 64,807,313 | |
| -1 | 64,807,313 |
If you did it right, you will end up with this table:
| 1 | 37 | 47 | 83 | 449 | 1,739 | 3,071 | 3,901 | 16,613 | 21,103 | 37,267 | 144,337 | 780,811 | 1,378,879 | 1,751,549 | 64,807,313 |
| -1 | -37 | -47 | -83 | -449 | -1,739 | -3,071 | -3,901 | -16,613 | -21,103 | -37,267 | -144,337 | -780,811 | -1,378,879 | -1,751,549 | -64,807,313 |
Here are some more numbers to try:
Try the factor calculator