A:
Positive:
1 x 6490082313 x 499237167 x 968669269 x 241267277 x 234299871 x 745133497 x 185593601 x 18023
Negative:
-1 x -64900823-13 x -4992371-67 x -968669-269 x -241267-277 x -234299-871 x -74513-3497 x -18559-3601 x -18023
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 64,900,823, 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 | 64,900,823 | |
| -1 | -64,900,823 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,900,823.
Example:
1 x 64,900,823 = 64,900,823
and
-1 x -64,900,823 = 64,900,823
Notice both answers equal 64,900,823
With that explanation out of the way, let's continue. Next, we take the number 64,900,823 and divide it by 2:
64,900,823 ÷ 2 = 32,450,411.5
If the quotient is a whole number, then 2 and 32,450,411.5 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 | 64,900,823 | |
| -1 | -64,900,823 |
Now, we try dividing 64,900,823 by 3:
64,900,823 ÷ 3 = 21,633,607.6667
If the quotient is a whole number, then 3 and 21,633,607.6667 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 | 64,900,823 | |
| -1 | -64,900,823 |
Let's try dividing by 4:
64,900,823 ÷ 4 = 16,225,205.75
If the quotient is a whole number, then 4 and 16,225,205.75 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 | 64,900,823 | |
| -1 | 64,900,823 |
If you did it right, you will end up with this table:
| 1 | 13 | 67 | 269 | 277 | 871 | 3,497 | 3,601 | 18,023 | 18,559 | 74,513 | 234,299 | 241,267 | 968,669 | 4,992,371 | 64,900,823 |
| -1 | -13 | -67 | -269 | -277 | -871 | -3,497 | -3,601 | -18,023 | -18,559 | -74,513 | -234,299 | -241,267 | -968,669 | -4,992,371 | -64,900,823 |
Here are some more numbers to try:
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