A:
Positive:
1 x 4215227913 x 324248319 x 221854147 x 896857247 x 170657611 x 68989893 x 472033631 x 11609
Negative:
-1 x -42152279-13 x -3242483-19 x -2218541-47 x -896857-247 x -170657-611 x -68989-893 x -47203-3631 x -11609
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 42,152,279, 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 | 42,152,279 | |
| -1 | -42,152,279 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,152,279.
Example:
1 x 42,152,279 = 42,152,279
and
-1 x -42,152,279 = 42,152,279
Notice both answers equal 42,152,279
With that explanation out of the way, let's continue. Next, we take the number 42,152,279 and divide it by 2:
42,152,279 ÷ 2 = 21,076,139.5
If the quotient is a whole number, then 2 and 21,076,139.5 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 | 42,152,279 | |
| -1 | -42,152,279 |
Now, we try dividing 42,152,279 by 3:
42,152,279 ÷ 3 = 14,050,759.6667
If the quotient is a whole number, then 3 and 14,050,759.6667 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 | 42,152,279 | |
| -1 | -42,152,279 |
Let's try dividing by 4:
42,152,279 ÷ 4 = 10,538,069.75
If the quotient is a whole number, then 4 and 10,538,069.75 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 | 42,152,279 | |
| -1 | 42,152,279 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 47 | 247 | 611 | 893 | 3,631 | 11,609 | 47,203 | 68,989 | 170,657 | 896,857 | 2,218,541 | 3,242,483 | 42,152,279 |
| -1 | -13 | -19 | -47 | -247 | -611 | -893 | -3,631 | -11,609 | -47,203 | -68,989 | -170,657 | -896,857 | -2,218,541 | -3,242,483 | -42,152,279 |
Here are some more numbers to try:
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