A:
Positive:
1 x 6431021311 x 584638331 x 2074523103 x 624371341 x 1885931133 x 567611831 x 351233193 x 20141
Negative:
-1 x -64310213-11 x -5846383-31 x -2074523-103 x -624371-341 x -188593-1133 x -56761-1831 x -35123-3193 x -20141
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 64,310,213, 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 | 64,310,213 | |
| -1 | -64,310,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,310,213.
Example:
1 x 64,310,213 = 64,310,213
and
-1 x -64,310,213 = 64,310,213
Notice both answers equal 64,310,213
With that explanation out of the way, let's continue. Next, we take the number 64,310,213 and divide it by 2:
64,310,213 ÷ 2 = 32,155,106.5
If the quotient is a whole number, then 2 and 32,155,106.5 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 | 64,310,213 | |
| -1 | -64,310,213 |
Now, we try dividing 64,310,213 by 3:
64,310,213 ÷ 3 = 21,436,737.6667
If the quotient is a whole number, then 3 and 21,436,737.6667 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 | 64,310,213 | |
| -1 | -64,310,213 |
Let's try dividing by 4:
64,310,213 ÷ 4 = 16,077,553.25
If the quotient is a whole number, then 4 and 16,077,553.25 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 | 64,310,213 | |
| -1 | 64,310,213 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 103 | 341 | 1,133 | 1,831 | 3,193 | 20,141 | 35,123 | 56,761 | 188,593 | 624,371 | 2,074,523 | 5,846,383 | 64,310,213 |
| -1 | -11 | -31 | -103 | -341 | -1,133 | -1,831 | -3,193 | -20,141 | -35,123 | -56,761 | -188,593 | -624,371 | -2,074,523 | -5,846,383 | -64,310,213 |
Here are some more numbers to try:
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