A:
Positive:
1 x 15014530713 x 1154963931 x 484339747 x 3194581403 x 372569611 x 2457371457 x 1030517927 x 18941
Negative:
-1 x -150145307-13 x -11549639-31 x -4843397-47 x -3194581-403 x -372569-611 x -245737-1457 x -103051-7927 x -18941
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 150,145,307, 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 | 150,145,307 | |
| -1 | -150,145,307 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 150,145,307.
Example:
1 x 150,145,307 = 150,145,307
and
-1 x -150,145,307 = 150,145,307
Notice both answers equal 150,145,307
With that explanation out of the way, let's continue. Next, we take the number 150,145,307 and divide it by 2:
150,145,307 ÷ 2 = 75,072,653.5
If the quotient is a whole number, then 2 and 75,072,653.5 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 | 150,145,307 | |
| -1 | -150,145,307 |
Now, we try dividing 150,145,307 by 3:
150,145,307 ÷ 3 = 50,048,435.6667
If the quotient is a whole number, then 3 and 50,048,435.6667 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 | 150,145,307 | |
| -1 | -150,145,307 |
Let's try dividing by 4:
150,145,307 ÷ 4 = 37,536,326.75
If the quotient is a whole number, then 4 and 37,536,326.75 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 | 150,145,307 | |
| -1 | 150,145,307 |
If you did it right, you will end up with this table:
| 1 | 13 | 31 | 47 | 403 | 611 | 1,457 | 7,927 | 18,941 | 103,051 | 245,737 | 372,569 | 3,194,581 | 4,843,397 | 11,549,639 | 150,145,307 |
| -1 | -13 | -31 | -47 | -403 | -611 | -1,457 | -7,927 | -18,941 | -103,051 | -245,737 | -372,569 | -3,194,581 | -4,843,397 | -11,549,639 | -150,145,307 |
Here are some more numbers to try:
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