A:
Positive:
1 x 7443897117 x 437876323 x 323647761 x 1220311391 x 1903811037 x 717831403 x 530573121 x 23851
Negative:
-1 x -74438971-17 x -4378763-23 x -3236477-61 x -1220311-391 x -190381-1037 x -71783-1403 x -53057-3121 x -23851
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 74,438,971, 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 | 74,438,971 | |
| -1 | -74,438,971 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 74,438,971.
Example:
1 x 74,438,971 = 74,438,971
and
-1 x -74,438,971 = 74,438,971
Notice both answers equal 74,438,971
With that explanation out of the way, let's continue. Next, we take the number 74,438,971 and divide it by 2:
74,438,971 ÷ 2 = 37,219,485.5
If the quotient is a whole number, then 2 and 37,219,485.5 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 | 74,438,971 | |
| -1 | -74,438,971 |
Now, we try dividing 74,438,971 by 3:
74,438,971 ÷ 3 = 24,812,990.3333
If the quotient is a whole number, then 3 and 24,812,990.3333 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 | 74,438,971 | |
| -1 | -74,438,971 |
Let's try dividing by 4:
74,438,971 ÷ 4 = 18,609,742.75
If the quotient is a whole number, then 4 and 18,609,742.75 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 | 74,438,971 | |
| -1 | 74,438,971 |
If you did it right, you will end up with this table:
| 1 | 17 | 23 | 61 | 391 | 1,037 | 1,403 | 3,121 | 23,851 | 53,057 | 71,783 | 190,381 | 1,220,311 | 3,236,477 | 4,378,763 | 74,438,971 |
| -1 | -17 | -23 | -61 | -391 | -1,037 | -1,403 | -3,121 | -23,851 | -53,057 | -71,783 | -190,381 | -1,220,311 | -3,236,477 | -4,378,763 | -74,438,971 |
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