A:
Positive:
1 x 184115477 x 263022111 x 167377777 x 239111157 x 1172711099 x 167531523 x 120891727 x 10661
Negative:
-1 x -18411547-7 x -2630221-11 x -1673777-77 x -239111-157 x -117271-1099 x -16753-1523 x -12089-1727 x -10661
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 18,411,547, 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 | 18,411,547 | |
| -1 | -18,411,547 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,411,547.
Example:
1 x 18,411,547 = 18,411,547
and
-1 x -18,411,547 = 18,411,547
Notice both answers equal 18,411,547
With that explanation out of the way, let's continue. Next, we take the number 18,411,547 and divide it by 2:
18,411,547 ÷ 2 = 9,205,773.5
If the quotient is a whole number, then 2 and 9,205,773.5 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 | 18,411,547 | |
| -1 | -18,411,547 |
Now, we try dividing 18,411,547 by 3:
18,411,547 ÷ 3 = 6,137,182.3333
If the quotient is a whole number, then 3 and 6,137,182.3333 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 | 18,411,547 | |
| -1 | -18,411,547 |
Let's try dividing by 4:
18,411,547 ÷ 4 = 4,602,886.75
If the quotient is a whole number, then 4 and 4,602,886.75 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 | 18,411,547 | |
| -1 | 18,411,547 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 157 | 1,099 | 1,523 | 1,727 | 10,661 | 12,089 | 16,753 | 117,271 | 239,111 | 1,673,777 | 2,630,221 | 18,411,547 |
| -1 | -7 | -11 | -77 | -157 | -1,099 | -1,523 | -1,727 | -10,661 | -12,089 | -16,753 | -117,271 | -239,111 | -1,673,777 | -2,630,221 | -18,411,547 |
Here are some more numbers to try:
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