A:
Positive:
1 x 404200155 x 808400359 x 685085181 x 223315295 x 137017757 x 53395905 x 446633785 x 10679
Negative:
-1 x -40420015-5 x -8084003-59 x -685085-181 x -223315-295 x -137017-757 x -53395-905 x -44663-3785 x -10679
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 40,420,015, 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 | 40,420,015 | |
| -1 | -40,420,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,420,015.
Example:
1 x 40,420,015 = 40,420,015
and
-1 x -40,420,015 = 40,420,015
Notice both answers equal 40,420,015
With that explanation out of the way, let's continue. Next, we take the number 40,420,015 and divide it by 2:
40,420,015 ÷ 2 = 20,210,007.5
If the quotient is a whole number, then 2 and 20,210,007.5 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 | 40,420,015 | |
| -1 | -40,420,015 |
Now, we try dividing 40,420,015 by 3:
40,420,015 ÷ 3 = 13,473,338.3333
If the quotient is a whole number, then 3 and 13,473,338.3333 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 | 40,420,015 | |
| -1 | -40,420,015 |
Let's try dividing by 4:
40,420,015 ÷ 4 = 10,105,003.75
If the quotient is a whole number, then 4 and 10,105,003.75 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 | 40,420,015 | |
| -1 | 40,420,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 59 | 181 | 295 | 757 | 905 | 3,785 | 10,679 | 44,663 | 53,395 | 137,017 | 223,315 | 685,085 | 8,084,003 | 40,420,015 |
| -1 | -5 | -59 | -181 | -295 | -757 | -905 | -3,785 | -10,679 | -44,663 | -53,395 | -137,017 | -223,315 | -685,085 | -8,084,003 | -40,420,015 |
Here are some more numbers to try:
Try the factor calculator