A:
Positive:
1 x 184509855 x 36901977 x 263585535 x 527171317 x 582051585 x 116411663 x 110952219 x 8315
Negative:
-1 x -18450985-5 x -3690197-7 x -2635855-35 x -527171-317 x -58205-1585 x -11641-1663 x -11095-2219 x -8315
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 18,450,985, 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 | 18,450,985 | |
| -1 | -18,450,985 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,450,985.
Example:
1 x 18,450,985 = 18,450,985
and
-1 x -18,450,985 = 18,450,985
Notice both answers equal 18,450,985
With that explanation out of the way, let's continue. Next, we take the number 18,450,985 and divide it by 2:
18,450,985 ÷ 2 = 9,225,492.5
If the quotient is a whole number, then 2 and 9,225,492.5 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 | 18,450,985 | |
| -1 | -18,450,985 |
Now, we try dividing 18,450,985 by 3:
18,450,985 ÷ 3 = 6,150,328.3333
If the quotient is a whole number, then 3 and 6,150,328.3333 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 | 18,450,985 | |
| -1 | -18,450,985 |
Let's try dividing by 4:
18,450,985 ÷ 4 = 4,612,746.25
If the quotient is a whole number, then 4 and 4,612,746.25 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 | 18,450,985 | |
| -1 | 18,450,985 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 317 | 1,585 | 1,663 | 2,219 | 8,315 | 11,095 | 11,641 | 58,205 | 527,171 | 2,635,855 | 3,690,197 | 18,450,985 |
| -1 | -5 | -7 | -35 | -317 | -1,585 | -1,663 | -2,219 | -8,315 | -11,095 | -11,641 | -58,205 | -527,171 | -2,635,855 | -3,690,197 | -18,450,985 |
Here are some more numbers to try:
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