A:
Positive:
1 x 400231377 x 571759111 x 363846761 x 65611777 x 519781427 x 93731671 x 596474697 x 8521
Negative:
-1 x -40023137-7 x -5717591-11 x -3638467-61 x -656117-77 x -519781-427 x -93731-671 x -59647-4697 x -8521
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 40,023,137, 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 | 40,023,137 | |
| -1 | -40,023,137 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,023,137.
Example:
1 x 40,023,137 = 40,023,137
and
-1 x -40,023,137 = 40,023,137
Notice both answers equal 40,023,137
With that explanation out of the way, let's continue. Next, we take the number 40,023,137 and divide it by 2:
40,023,137 ÷ 2 = 20,011,568.5
If the quotient is a whole number, then 2 and 20,011,568.5 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 | 40,023,137 | |
| -1 | -40,023,137 |
Now, we try dividing 40,023,137 by 3:
40,023,137 ÷ 3 = 13,341,045.6667
If the quotient is a whole number, then 3 and 13,341,045.6667 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 | 40,023,137 | |
| -1 | -40,023,137 |
Let's try dividing by 4:
40,023,137 ÷ 4 = 10,005,784.25
If the quotient is a whole number, then 4 and 10,005,784.25 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 | 40,023,137 | |
| -1 | 40,023,137 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 61 | 77 | 427 | 671 | 4,697 | 8,521 | 59,647 | 93,731 | 519,781 | 656,117 | 3,638,467 | 5,717,591 | 40,023,137 |
| -1 | -7 | -11 | -61 | -77 | -427 | -671 | -4,697 | -8,521 | -59,647 | -93,731 | -519,781 | -656,117 | -3,638,467 | -5,717,591 | -40,023,137 |
Here are some more numbers to try:
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