A:
Positive:
1 x 52139155 x 10427837 x 74484535 x 148969311 x 16765479 x 108851555 x 33532177 x 2395
Negative:
-1 x -5213915-5 x -1042783-7 x -744845-35 x -148969-311 x -16765-479 x -10885-1555 x -3353-2177 x -2395
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 5,213,915, 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 | 5,213,915 | |
| -1 | -5,213,915 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,213,915.
Example:
1 x 5,213,915 = 5,213,915
and
-1 x -5,213,915 = 5,213,915
Notice both answers equal 5,213,915
With that explanation out of the way, let's continue. Next, we take the number 5,213,915 and divide it by 2:
5,213,915 ÷ 2 = 2,606,957.5
If the quotient is a whole number, then 2 and 2,606,957.5 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 | 5,213,915 | |
| -1 | -5,213,915 |
Now, we try dividing 5,213,915 by 3:
5,213,915 ÷ 3 = 1,737,971.6667
If the quotient is a whole number, then 3 and 1,737,971.6667 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 | 5,213,915 | |
| -1 | -5,213,915 |
Let's try dividing by 4:
5,213,915 ÷ 4 = 1,303,478.75
If the quotient is a whole number, then 4 and 1,303,478.75 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 | 5,213,915 | |
| -1 | 5,213,915 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 311 | 479 | 1,555 | 2,177 | 2,395 | 3,353 | 10,885 | 16,765 | 148,969 | 744,845 | 1,042,783 | 5,213,915 |
| -1 | -5 | -7 | -35 | -311 | -479 | -1,555 | -2,177 | -2,395 | -3,353 | -10,885 | -16,765 | -148,969 | -744,845 | -1,042,783 | -5,213,915 |
Here are some more numbers to try:
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