A:
Positive:
1 x 51428237 x 73468917 x 30251923 x 223601119 x 43217161 x 31943391 x 131531879 x 2737
Negative:
-1 x -5142823-7 x -734689-17 x -302519-23 x -223601-119 x -43217-161 x -31943-391 x -13153-1879 x -2737
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 5,142,823, 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 | 5,142,823 | |
| -1 | -5,142,823 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,142,823.
Example:
1 x 5,142,823 = 5,142,823
and
-1 x -5,142,823 = 5,142,823
Notice both answers equal 5,142,823
With that explanation out of the way, let's continue. Next, we take the number 5,142,823 and divide it by 2:
5,142,823 ÷ 2 = 2,571,411.5
If the quotient is a whole number, then 2 and 2,571,411.5 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 | 5,142,823 | |
| -1 | -5,142,823 |
Now, we try dividing 5,142,823 by 3:
5,142,823 ÷ 3 = 1,714,274.3333
If the quotient is a whole number, then 3 and 1,714,274.3333 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 | 5,142,823 | |
| -1 | -5,142,823 |
Let's try dividing by 4:
5,142,823 ÷ 4 = 1,285,705.75
If the quotient is a whole number, then 4 and 1,285,705.75 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 | 5,142,823 | |
| -1 | 5,142,823 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 23 | 119 | 161 | 391 | 1,879 | 2,737 | 13,153 | 31,943 | 43,217 | 223,601 | 302,519 | 734,689 | 5,142,823 |
| -1 | -7 | -17 | -23 | -119 | -161 | -391 | -1,879 | -2,737 | -13,153 | -31,943 | -43,217 | -223,601 | -302,519 | -734,689 | -5,142,823 |
Here are some more numbers to try:
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