A:
Positive:
1 x 1526805555 x 3053611123 x 6638285115 x 1327657389 x 3924951945 x 784993413 x 447358947 x 17065
Negative:
-1 x -152680555-5 x -30536111-23 x -6638285-115 x -1327657-389 x -392495-1945 x -78499-3413 x -44735-8947 x -17065
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 152,680,555, 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 | 152,680,555 | |
| -1 | -152,680,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 152,680,555.
Example:
1 x 152,680,555 = 152,680,555
and
-1 x -152,680,555 = 152,680,555
Notice both answers equal 152,680,555
With that explanation out of the way, let's continue. Next, we take the number 152,680,555 and divide it by 2:
152,680,555 ÷ 2 = 76,340,277.5
If the quotient is a whole number, then 2 and 76,340,277.5 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 | 152,680,555 | |
| -1 | -152,680,555 |
Now, we try dividing 152,680,555 by 3:
152,680,555 ÷ 3 = 50,893,518.3333
If the quotient is a whole number, then 3 and 50,893,518.3333 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 | 152,680,555 | |
| -1 | -152,680,555 |
Let's try dividing by 4:
152,680,555 ÷ 4 = 38,170,138.75
If the quotient is a whole number, then 4 and 38,170,138.75 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 | 152,680,555 | |
| -1 | 152,680,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 389 | 1,945 | 3,413 | 8,947 | 17,065 | 44,735 | 78,499 | 392,495 | 1,327,657 | 6,638,285 | 30,536,111 | 152,680,555 |
| -1 | -5 | -23 | -115 | -389 | -1,945 | -3,413 | -8,947 | -17,065 | -44,735 | -78,499 | -392,495 | -1,327,657 | -6,638,285 | -30,536,111 | -152,680,555 |
Here are some more numbers to try:
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