A:
Positive:
1 x 1848573111 x 168052129 x 637439167 x 110693319 x 57949347 x 532731837 x 100633817 x 4843
Negative:
-1 x -18485731-11 x -1680521-29 x -637439-167 x -110693-319 x -57949-347 x -53273-1837 x -10063-3817 x -4843
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 18,485,731, 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 | 18,485,731 | |
| -1 | -18,485,731 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,485,731.
Example:
1 x 18,485,731 = 18,485,731
and
-1 x -18,485,731 = 18,485,731
Notice both answers equal 18,485,731
With that explanation out of the way, let's continue. Next, we take the number 18,485,731 and divide it by 2:
18,485,731 ÷ 2 = 9,242,865.5
If the quotient is a whole number, then 2 and 9,242,865.5 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 | 18,485,731 | |
| -1 | -18,485,731 |
Now, we try dividing 18,485,731 by 3:
18,485,731 ÷ 3 = 6,161,910.3333
If the quotient is a whole number, then 3 and 6,161,910.3333 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 | 18,485,731 | |
| -1 | -18,485,731 |
Let's try dividing by 4:
18,485,731 ÷ 4 = 4,621,432.75
If the quotient is a whole number, then 4 and 4,621,432.75 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 | 18,485,731 | |
| -1 | 18,485,731 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 167 | 319 | 347 | 1,837 | 3,817 | 4,843 | 10,063 | 53,273 | 57,949 | 110,693 | 637,439 | 1,680,521 | 18,485,731 |
| -1 | -11 | -29 | -167 | -319 | -347 | -1,837 | -3,817 | -4,843 | -10,063 | -53,273 | -57,949 | -110,693 | -637,439 | -1,680,521 | -18,485,731 |
Here are some more numbers to try:
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