A:
Positive:
1 x 51248477 x 73212113 x 39421991 x 56317199 x 25753283 x 181091393 x 36791981 x 2587
Negative:
-1 x -5124847-7 x -732121-13 x -394219-91 x -56317-199 x -25753-283 x -18109-1393 x -3679-1981 x -2587
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 5,124,847, 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 | 5,124,847 | |
| -1 | -5,124,847 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,124,847.
Example:
1 x 5,124,847 = 5,124,847
and
-1 x -5,124,847 = 5,124,847
Notice both answers equal 5,124,847
With that explanation out of the way, let's continue. Next, we take the number 5,124,847 and divide it by 2:
5,124,847 ÷ 2 = 2,562,423.5
If the quotient is a whole number, then 2 and 2,562,423.5 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 | 5,124,847 | |
| -1 | -5,124,847 |
Now, we try dividing 5,124,847 by 3:
5,124,847 ÷ 3 = 1,708,282.3333
If the quotient is a whole number, then 3 and 1,708,282.3333 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 | 5,124,847 | |
| -1 | -5,124,847 |
Let's try dividing by 4:
5,124,847 ÷ 4 = 1,281,211.75
If the quotient is a whole number, then 4 and 1,281,211.75 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 | 5,124,847 | |
| -1 | 5,124,847 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 199 | 283 | 1,393 | 1,981 | 2,587 | 3,679 | 18,109 | 25,753 | 56,317 | 394,219 | 732,121 | 5,124,847 |
| -1 | -7 | -13 | -91 | -199 | -283 | -1,393 | -1,981 | -2,587 | -3,679 | -18,109 | -25,753 | -56,317 | -394,219 | -732,121 | -5,124,847 |
Here are some more numbers to try:
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