A:
Positive:
1 x 48729855 x 97459713 x 37484561 x 7988565 x 74969305 x 15977793 x 61451229 x 3965
Negative:
-1 x -4872985-5 x -974597-13 x -374845-61 x -79885-65 x -74969-305 x -15977-793 x -6145-1229 x -3965
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 4,872,985, 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 | 4,872,985 | |
| -1 | -4,872,985 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,872,985.
Example:
1 x 4,872,985 = 4,872,985
and
-1 x -4,872,985 = 4,872,985
Notice both answers equal 4,872,985
With that explanation out of the way, let's continue. Next, we take the number 4,872,985 and divide it by 2:
4,872,985 ÷ 2 = 2,436,492.5
If the quotient is a whole number, then 2 and 2,436,492.5 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 | 4,872,985 | |
| -1 | -4,872,985 |
Now, we try dividing 4,872,985 by 3:
4,872,985 ÷ 3 = 1,624,328.3333
If the quotient is a whole number, then 3 and 1,624,328.3333 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 | 4,872,985 | |
| -1 | -4,872,985 |
Let's try dividing by 4:
4,872,985 ÷ 4 = 1,218,246.25
If the quotient is a whole number, then 4 and 1,218,246.25 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 | 4,872,985 | |
| -1 | 4,872,985 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 61 | 65 | 305 | 793 | 1,229 | 3,965 | 6,145 | 15,977 | 74,969 | 79,885 | 374,845 | 974,597 | 4,872,985 |
| -1 | -5 | -13 | -61 | -65 | -305 | -793 | -1,229 | -3,965 | -6,145 | -15,977 | -74,969 | -79,885 | -374,845 | -974,597 | -4,872,985 |
Here are some more numbers to try:
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