A:
Positive:
1 x 406212655 x 8124253151 x 269015173 x 234805311 x 130615755 x 53803865 x 469611555 x 26123
Negative:
-1 x -40621265-5 x -8124253-151 x -269015-173 x -234805-311 x -130615-755 x -53803-865 x -46961-1555 x -26123
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 40,621,265, 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 | 40,621,265 | |
| -1 | -40,621,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,621,265.
Example:
1 x 40,621,265 = 40,621,265
and
-1 x -40,621,265 = 40,621,265
Notice both answers equal 40,621,265
With that explanation out of the way, let's continue. Next, we take the number 40,621,265 and divide it by 2:
40,621,265 ÷ 2 = 20,310,632.5
If the quotient is a whole number, then 2 and 20,310,632.5 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 | 40,621,265 | |
| -1 | -40,621,265 |
Now, we try dividing 40,621,265 by 3:
40,621,265 ÷ 3 = 13,540,421.6667
If the quotient is a whole number, then 3 and 13,540,421.6667 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 | 40,621,265 | |
| -1 | -40,621,265 |
Let's try dividing by 4:
40,621,265 ÷ 4 = 10,155,316.25
If the quotient is a whole number, then 4 and 10,155,316.25 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 | 40,621,265 | |
| -1 | 40,621,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 151 | 173 | 311 | 755 | 865 | 1,555 | 26,123 | 46,961 | 53,803 | 130,615 | 234,805 | 269,015 | 8,124,253 | 40,621,265 |
| -1 | -5 | -151 | -173 | -311 | -755 | -865 | -1,555 | -26,123 | -46,961 | -53,803 | -130,615 | -234,805 | -269,015 | -8,124,253 | -40,621,265 |
Here are some more numbers to try:
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