A:
Positive:
1 x 7458780055 x 14917560137 x 20158865137 x 5444365185 x 4031773685 x 10888735069 x 14714525345 x 29429
Negative:
-1 x -745878005-5 x -149175601-37 x -20158865-137 x -5444365-185 x -4031773-685 x -1088873-5069 x -147145-25345 x -29429
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 745,878,005, 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 | 745,878,005 | |
| -1 | -745,878,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 745,878,005.
Example:
1 x 745,878,005 = 745,878,005
and
-1 x -745,878,005 = 745,878,005
Notice both answers equal 745,878,005
With that explanation out of the way, let's continue. Next, we take the number 745,878,005 and divide it by 2:
745,878,005 ÷ 2 = 372,939,002.5
If the quotient is a whole number, then 2 and 372,939,002.5 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 | 745,878,005 | |
| -1 | -745,878,005 |
Now, we try dividing 745,878,005 by 3:
745,878,005 ÷ 3 = 248,626,001.6667
If the quotient is a whole number, then 3 and 248,626,001.6667 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 | 745,878,005 | |
| -1 | -745,878,005 |
Let's try dividing by 4:
745,878,005 ÷ 4 = 186,469,501.25
If the quotient is a whole number, then 4 and 186,469,501.25 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 | 745,878,005 | |
| -1 | 745,878,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 137 | 185 | 685 | 5,069 | 25,345 | 29,429 | 147,145 | 1,088,873 | 4,031,773 | 5,444,365 | 20,158,865 | 149,175,601 | 745,878,005 |
| -1 | -5 | -37 | -137 | -185 | -685 | -5,069 | -25,345 | -29,429 | -147,145 | -1,088,873 | -4,031,773 | -5,444,365 | -20,158,865 | -149,175,601 | -745,878,005 |
Here are some more numbers to try:
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