A:
Positive:
1 x 490597913 x 37738317 x 28858779 x 62101221 x 22199281 x 174591027 x 47771343 x 3653
Negative:
-1 x -4905979-13 x -377383-17 x -288587-79 x -62101-221 x -22199-281 x -17459-1027 x -4777-1343 x -3653
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 4,905,979, 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 | 4,905,979 | |
| -1 | -4,905,979 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,905,979.
Example:
1 x 4,905,979 = 4,905,979
and
-1 x -4,905,979 = 4,905,979
Notice both answers equal 4,905,979
With that explanation out of the way, let's continue. Next, we take the number 4,905,979 and divide it by 2:
4,905,979 ÷ 2 = 2,452,989.5
If the quotient is a whole number, then 2 and 2,452,989.5 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 | 4,905,979 | |
| -1 | -4,905,979 |
Now, we try dividing 4,905,979 by 3:
4,905,979 ÷ 3 = 1,635,326.3333
If the quotient is a whole number, then 3 and 1,635,326.3333 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 | 4,905,979 | |
| -1 | -4,905,979 |
Let's try dividing by 4:
4,905,979 ÷ 4 = 1,226,494.75
If the quotient is a whole number, then 4 and 1,226,494.75 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 | 4,905,979 | |
| -1 | 4,905,979 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 79 | 221 | 281 | 1,027 | 1,343 | 3,653 | 4,777 | 17,459 | 22,199 | 62,101 | 288,587 | 377,383 | 4,905,979 |
| -1 | -13 | -17 | -79 | -221 | -281 | -1,027 | -1,343 | -3,653 | -4,777 | -17,459 | -22,199 | -62,101 | -288,587 | -377,383 | -4,905,979 |
Here are some more numbers to try:
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