A:
Positive:
1 x 2807502719 x 147763347 x 597341149 x 188423211 x 133057893 x 314392831 x 99174009 x 7003
Negative:
-1 x -28075027-19 x -1477633-47 x -597341-149 x -188423-211 x -133057-893 x -31439-2831 x -9917-4009 x -7003
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 28,075,027, 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 | 28,075,027 | |
| -1 | -28,075,027 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,075,027.
Example:
1 x 28,075,027 = 28,075,027
and
-1 x -28,075,027 = 28,075,027
Notice both answers equal 28,075,027
With that explanation out of the way, let's continue. Next, we take the number 28,075,027 and divide it by 2:
28,075,027 ÷ 2 = 14,037,513.5
If the quotient is a whole number, then 2 and 14,037,513.5 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 | 28,075,027 | |
| -1 | -28,075,027 |
Now, we try dividing 28,075,027 by 3:
28,075,027 ÷ 3 = 9,358,342.3333
If the quotient is a whole number, then 3 and 9,358,342.3333 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 | 28,075,027 | |
| -1 | -28,075,027 |
Let's try dividing by 4:
28,075,027 ÷ 4 = 7,018,756.75
If the quotient is a whole number, then 4 and 7,018,756.75 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 | 28,075,027 | |
| -1 | 28,075,027 |
If you did it right, you will end up with this table:
| 1 | 19 | 47 | 149 | 211 | 893 | 2,831 | 4,009 | 7,003 | 9,917 | 31,439 | 133,057 | 188,423 | 597,341 | 1,477,633 | 28,075,027 |
| -1 | -19 | -47 | -149 | -211 | -893 | -2,831 | -4,009 | -7,003 | -9,917 | -31,439 | -133,057 | -188,423 | -597,341 | -1,477,633 | -28,075,027 |
Here are some more numbers to try:
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