A:
Positive:
1 x 402502455 x 80500497 x 575003531 x 129839535 x 1150007155 x 259679217 x 1854851085 x 37097
Negative:
-1 x -40250245-5 x -8050049-7 x -5750035-31 x -1298395-35 x -1150007-155 x -259679-217 x -185485-1085 x -37097
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 40,250,245, 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 | 40,250,245 | |
| -1 | -40,250,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,250,245.
Example:
1 x 40,250,245 = 40,250,245
and
-1 x -40,250,245 = 40,250,245
Notice both answers equal 40,250,245
With that explanation out of the way, let's continue. Next, we take the number 40,250,245 and divide it by 2:
40,250,245 ÷ 2 = 20,125,122.5
If the quotient is a whole number, then 2 and 20,125,122.5 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 | 40,250,245 | |
| -1 | -40,250,245 |
Now, we try dividing 40,250,245 by 3:
40,250,245 ÷ 3 = 13,416,748.3333
If the quotient is a whole number, then 3 and 13,416,748.3333 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 | 40,250,245 | |
| -1 | -40,250,245 |
Let's try dividing by 4:
40,250,245 ÷ 4 = 10,062,561.25
If the quotient is a whole number, then 4 and 10,062,561.25 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 | 40,250,245 | |
| -1 | 40,250,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 37,097 | 185,485 | 259,679 | 1,150,007 | 1,298,395 | 5,750,035 | 8,050,049 | 40,250,245 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -37,097 | -185,485 | -259,679 | -1,150,007 | -1,298,395 | -5,750,035 | -8,050,049 | -40,250,245 |
Here are some more numbers to try:
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