A:
Positive:
1 x 4041925117 x 237760319 x 2127329289 x 139859323 x 125137433 x 933474913 x 82275491 x 7361
Negative:
-1 x -40419251-17 x -2377603-19 x -2127329-289 x -139859-323 x -125137-433 x -93347-4913 x -8227-5491 x -7361
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 40,419,251, 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 | 40,419,251 | |
| -1 | -40,419,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,419,251.
Example:
1 x 40,419,251 = 40,419,251
and
-1 x -40,419,251 = 40,419,251
Notice both answers equal 40,419,251
With that explanation out of the way, let's continue. Next, we take the number 40,419,251 and divide it by 2:
40,419,251 ÷ 2 = 20,209,625.5
If the quotient is a whole number, then 2 and 20,209,625.5 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 | 40,419,251 | |
| -1 | -40,419,251 |
Now, we try dividing 40,419,251 by 3:
40,419,251 ÷ 3 = 13,473,083.6667
If the quotient is a whole number, then 3 and 13,473,083.6667 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 | 40,419,251 | |
| -1 | -40,419,251 |
Let's try dividing by 4:
40,419,251 ÷ 4 = 10,104,812.75
If the quotient is a whole number, then 4 and 10,104,812.75 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 | 40,419,251 | |
| -1 | 40,419,251 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 289 | 323 | 433 | 4,913 | 5,491 | 7,361 | 8,227 | 93,347 | 125,137 | 139,859 | 2,127,329 | 2,377,603 | 40,419,251 |
| -1 | -17 | -19 | -289 | -323 | -433 | -4,913 | -5,491 | -7,361 | -8,227 | -93,347 | -125,137 | -139,859 | -2,127,329 | -2,377,603 | -40,419,251 |
Here are some more numbers to try:
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