A:
Positive:
1 x 278519297 x 397884719 x 146589161 x 456589133 x 209413427 x 652271159 x 240313433 x 8113
Negative:
-1 x -27851929-7 x -3978847-19 x -1465891-61 x -456589-133 x -209413-427 x -65227-1159 x -24031-3433 x -8113
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 27,851,929, 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 | 27,851,929 | |
| -1 | -27,851,929 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,851,929.
Example:
1 x 27,851,929 = 27,851,929
and
-1 x -27,851,929 = 27,851,929
Notice both answers equal 27,851,929
With that explanation out of the way, let's continue. Next, we take the number 27,851,929 and divide it by 2:
27,851,929 ÷ 2 = 13,925,964.5
If the quotient is a whole number, then 2 and 13,925,964.5 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 | 27,851,929 | |
| -1 | -27,851,929 |
Now, we try dividing 27,851,929 by 3:
27,851,929 ÷ 3 = 9,283,976.3333
If the quotient is a whole number, then 3 and 9,283,976.3333 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 | 27,851,929 | |
| -1 | -27,851,929 |
Let's try dividing by 4:
27,851,929 ÷ 4 = 6,962,982.25
If the quotient is a whole number, then 4 and 6,962,982.25 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 | 27,851,929 | |
| -1 | 27,851,929 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 61 | 133 | 427 | 1,159 | 3,433 | 8,113 | 24,031 | 65,227 | 209,413 | 456,589 | 1,465,891 | 3,978,847 | 27,851,929 |
| -1 | -7 | -19 | -61 | -133 | -427 | -1,159 | -3,433 | -8,113 | -24,031 | -65,227 | -209,413 | -456,589 | -1,465,891 | -3,978,847 | -27,851,929 |
Here are some more numbers to try:
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