A:
Positive:
1 x 64403320311 x 5854847359 x 10915817233 x 2764091649 x 9923472563 x 2512814259 x 15121713747 x 46849
Negative:
-1 x -644033203-11 x -58548473-59 x -10915817-233 x -2764091-649 x -992347-2563 x -251281-4259 x -151217-13747 x -46849
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 644,033,203, 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 | 644,033,203 | |
| -1 | -644,033,203 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 644,033,203.
Example:
1 x 644,033,203 = 644,033,203
and
-1 x -644,033,203 = 644,033,203
Notice both answers equal 644,033,203
With that explanation out of the way, let's continue. Next, we take the number 644,033,203 and divide it by 2:
644,033,203 ÷ 2 = 322,016,601.5
If the quotient is a whole number, then 2 and 322,016,601.5 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 | 644,033,203 | |
| -1 | -644,033,203 |
Now, we try dividing 644,033,203 by 3:
644,033,203 ÷ 3 = 214,677,734.3333
If the quotient is a whole number, then 3 and 214,677,734.3333 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 | 644,033,203 | |
| -1 | -644,033,203 |
Let's try dividing by 4:
644,033,203 ÷ 4 = 161,008,300.75
If the quotient is a whole number, then 4 and 161,008,300.75 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 | 644,033,203 | |
| -1 | 644,033,203 |
If you did it right, you will end up with this table:
| 1 | 11 | 59 | 233 | 649 | 2,563 | 4,259 | 13,747 | 46,849 | 151,217 | 251,281 | 992,347 | 2,764,091 | 10,915,817 | 58,548,473 | 644,033,203 |
| -1 | -11 | -59 | -233 | -649 | -2,563 | -4,259 | -13,747 | -46,849 | -151,217 | -251,281 | -992,347 | -2,764,091 | -10,915,817 | -58,548,473 | -644,033,203 |
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