A:
Positive:
1 x 744421455 x 1488842923 x 3236615115 x 647323139 x 535555695 x 1071113197 x 232854657 x 15985
Negative:
-1 x -74442145-5 x -14888429-23 x -3236615-115 x -647323-139 x -535555-695 x -107111-3197 x -23285-4657 x -15985
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 74,442,145, 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 | 74,442,145 | |
| -1 | -74,442,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 74,442,145.
Example:
1 x 74,442,145 = 74,442,145
and
-1 x -74,442,145 = 74,442,145
Notice both answers equal 74,442,145
With that explanation out of the way, let's continue. Next, we take the number 74,442,145 and divide it by 2:
74,442,145 ÷ 2 = 37,221,072.5
If the quotient is a whole number, then 2 and 37,221,072.5 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 | 74,442,145 | |
| -1 | -74,442,145 |
Now, we try dividing 74,442,145 by 3:
74,442,145 ÷ 3 = 24,814,048.3333
If the quotient is a whole number, then 3 and 24,814,048.3333 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 | 74,442,145 | |
| -1 | -74,442,145 |
Let's try dividing by 4:
74,442,145 ÷ 4 = 18,610,536.25
If the quotient is a whole number, then 4 and 18,610,536.25 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 | 74,442,145 | |
| -1 | 74,442,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 139 | 695 | 3,197 | 4,657 | 15,985 | 23,285 | 107,111 | 535,555 | 647,323 | 3,236,615 | 14,888,429 | 74,442,145 |
| -1 | -5 | -23 | -115 | -139 | -695 | -3,197 | -4,657 | -15,985 | -23,285 | -107,111 | -535,555 | -647,323 | -3,236,615 | -14,888,429 | -74,442,145 |
Here are some more numbers to try:
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