A:
Positive:
1 x 1330777155 x 2661554337 x 3596695185 x 719339431 x 3087651669 x 797352155 x 617538345 x 15947
Negative:
-1 x -133077715-5 x -26615543-37 x -3596695-185 x -719339-431 x -308765-1669 x -79735-2155 x -61753-8345 x -15947
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 133,077,715, 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 | 133,077,715 | |
| -1 | -133,077,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,077,715.
Example:
1 x 133,077,715 = 133,077,715
and
-1 x -133,077,715 = 133,077,715
Notice both answers equal 133,077,715
With that explanation out of the way, let's continue. Next, we take the number 133,077,715 and divide it by 2:
133,077,715 ÷ 2 = 66,538,857.5
If the quotient is a whole number, then 2 and 66,538,857.5 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 | 133,077,715 | |
| -1 | -133,077,715 |
Now, we try dividing 133,077,715 by 3:
133,077,715 ÷ 3 = 44,359,238.3333
If the quotient is a whole number, then 3 and 44,359,238.3333 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 | 133,077,715 | |
| -1 | -133,077,715 |
Let's try dividing by 4:
133,077,715 ÷ 4 = 33,269,428.75
If the quotient is a whole number, then 4 and 33,269,428.75 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 | 133,077,715 | |
| -1 | 133,077,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 431 | 1,669 | 2,155 | 8,345 | 15,947 | 61,753 | 79,735 | 308,765 | 719,339 | 3,596,695 | 26,615,543 | 133,077,715 |
| -1 | -5 | -37 | -185 | -431 | -1,669 | -2,155 | -8,345 | -15,947 | -61,753 | -79,735 | -308,765 | -719,339 | -3,596,695 | -26,615,543 | -133,077,715 |
Here are some more numbers to try:
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