A:
Positive:
1 x 184625155 x 369250331 x 595565155 x 119113311 x 59365383 x 482051555 x 118731915 x 9641
Negative:
-1 x -18462515-5 x -3692503-31 x -595565-155 x -119113-311 x -59365-383 x -48205-1555 x -11873-1915 x -9641
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 18,462,515, 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 | 18,462,515 | |
| -1 | -18,462,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,462,515.
Example:
1 x 18,462,515 = 18,462,515
and
-1 x -18,462,515 = 18,462,515
Notice both answers equal 18,462,515
With that explanation out of the way, let's continue. Next, we take the number 18,462,515 and divide it by 2:
18,462,515 ÷ 2 = 9,231,257.5
If the quotient is a whole number, then 2 and 9,231,257.5 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 | 18,462,515 | |
| -1 | -18,462,515 |
Now, we try dividing 18,462,515 by 3:
18,462,515 ÷ 3 = 6,154,171.6667
If the quotient is a whole number, then 3 and 6,154,171.6667 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 | 18,462,515 | |
| -1 | -18,462,515 |
Let's try dividing by 4:
18,462,515 ÷ 4 = 4,615,628.75
If the quotient is a whole number, then 4 and 4,615,628.75 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 | 18,462,515 | |
| -1 | 18,462,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 311 | 383 | 1,555 | 1,915 | 9,641 | 11,873 | 48,205 | 59,365 | 119,113 | 595,565 | 3,692,503 | 18,462,515 |
| -1 | -5 | -31 | -155 | -311 | -383 | -1,555 | -1,915 | -9,641 | -11,873 | -48,205 | -59,365 | -119,113 | -595,565 | -3,692,503 | -18,462,515 |
Here are some more numbers to try:
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