A:
Positive:
1 x 38747877 x 55354123 x 16846941 x 94507161 x 24067287 x 13501587 x 6601943 x 4109
Negative:
-1 x -3874787-7 x -553541-23 x -168469-41 x -94507-161 x -24067-287 x -13501-587 x -6601-943 x -4109
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 3,874,787, 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 | 3,874,787 | |
| -1 | -3,874,787 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,874,787.
Example:
1 x 3,874,787 = 3,874,787
and
-1 x -3,874,787 = 3,874,787
Notice both answers equal 3,874,787
With that explanation out of the way, let's continue. Next, we take the number 3,874,787 and divide it by 2:
3,874,787 ÷ 2 = 1,937,393.5
If the quotient is a whole number, then 2 and 1,937,393.5 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 | 3,874,787 | |
| -1 | -3,874,787 |
Now, we try dividing 3,874,787 by 3:
3,874,787 ÷ 3 = 1,291,595.6667
If the quotient is a whole number, then 3 and 1,291,595.6667 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 | 3,874,787 | |
| -1 | -3,874,787 |
Let's try dividing by 4:
3,874,787 ÷ 4 = 968,696.75
If the quotient is a whole number, then 4 and 968,696.75 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 | 3,874,787 | |
| -1 | 3,874,787 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 41 | 161 | 287 | 587 | 943 | 4,109 | 6,601 | 13,501 | 24,067 | 94,507 | 168,469 | 553,541 | 3,874,787 |
| -1 | -7 | -23 | -41 | -161 | -287 | -587 | -943 | -4,109 | -6,601 | -13,501 | -24,067 | -94,507 | -168,469 | -553,541 | -3,874,787 |
Here are some more numbers to try:
Try the factor calculator