A:
Positive:
1 x 23874955 x 47749911 x 21704555 x 4340983 x 28765415 x 5753523 x 4565913 x 2615
Negative:
-1 x -2387495-5 x -477499-11 x -217045-55 x -43409-83 x -28765-415 x -5753-523 x -4565-913 x -2615
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 2,387,495, 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 | 2,387,495 | |
| -1 | -2,387,495 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,387,495.
Example:
1 x 2,387,495 = 2,387,495
and
-1 x -2,387,495 = 2,387,495
Notice both answers equal 2,387,495
With that explanation out of the way, let's continue. Next, we take the number 2,387,495 and divide it by 2:
2,387,495 ÷ 2 = 1,193,747.5
If the quotient is a whole number, then 2 and 1,193,747.5 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 | 2,387,495 | |
| -1 | -2,387,495 |
Now, we try dividing 2,387,495 by 3:
2,387,495 ÷ 3 = 795,831.6667
If the quotient is a whole number, then 3 and 795,831.6667 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 | 2,387,495 | |
| -1 | -2,387,495 |
Let's try dividing by 4:
2,387,495 ÷ 4 = 596,873.75
If the quotient is a whole number, then 4 and 596,873.75 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 | 2,387,495 | |
| -1 | 2,387,495 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 83 | 415 | 523 | 913 | 2,615 | 4,565 | 5,753 | 28,765 | 43,409 | 217,045 | 477,499 | 2,387,495 |
| -1 | -5 | -11 | -55 | -83 | -415 | -523 | -913 | -2,615 | -4,565 | -5,753 | -28,765 | -43,409 | -217,045 | -477,499 | -2,387,495 |
Here are some more numbers to try:
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