A:
Positive:
1 x 742845855 x 1485691719 x 390971583 x 89499595 x 781943415 x 1789991577 x 471057885 x 9421
Negative:
-1 x -74284585-5 x -14856917-19 x -3909715-83 x -894995-95 x -781943-415 x -178999-1577 x -47105-7885 x -9421
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 74,284,585, 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 | 74,284,585 | |
| -1 | -74,284,585 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 74,284,585.
Example:
1 x 74,284,585 = 74,284,585
and
-1 x -74,284,585 = 74,284,585
Notice both answers equal 74,284,585
With that explanation out of the way, let's continue. Next, we take the number 74,284,585 and divide it by 2:
74,284,585 ÷ 2 = 37,142,292.5
If the quotient is a whole number, then 2 and 37,142,292.5 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 | 74,284,585 | |
| -1 | -74,284,585 |
Now, we try dividing 74,284,585 by 3:
74,284,585 ÷ 3 = 24,761,528.3333
If the quotient is a whole number, then 3 and 24,761,528.3333 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 | 74,284,585 | |
| -1 | -74,284,585 |
Let's try dividing by 4:
74,284,585 ÷ 4 = 18,571,146.25
If the quotient is a whole number, then 4 and 18,571,146.25 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 | 74,284,585 | |
| -1 | 74,284,585 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 83 | 95 | 415 | 1,577 | 7,885 | 9,421 | 47,105 | 178,999 | 781,943 | 894,995 | 3,909,715 | 14,856,917 | 74,284,585 |
| -1 | -5 | -19 | -83 | -95 | -415 | -1,577 | -7,885 | -9,421 | -47,105 | -178,999 | -781,943 | -894,995 | -3,909,715 | -14,856,917 | -74,284,585 |
Here are some more numbers to try:
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