A:
Positive:
1 x 1550023097 x 2214318711 x 1409111977 x 2013017433 x 3579733031 x 511394649 x 333414763 x 32543
Negative:
-1 x -155002309-7 x -22143187-11 x -14091119-77 x -2013017-433 x -357973-3031 x -51139-4649 x -33341-4763 x -32543
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 155,002,309, 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 | 155,002,309 | |
| -1 | -155,002,309 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,002,309.
Example:
1 x 155,002,309 = 155,002,309
and
-1 x -155,002,309 = 155,002,309
Notice both answers equal 155,002,309
With that explanation out of the way, let's continue. Next, we take the number 155,002,309 and divide it by 2:
155,002,309 ÷ 2 = 77,501,154.5
If the quotient is a whole number, then 2 and 77,501,154.5 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 | 155,002,309 | |
| -1 | -155,002,309 |
Now, we try dividing 155,002,309 by 3:
155,002,309 ÷ 3 = 51,667,436.3333
If the quotient is a whole number, then 3 and 51,667,436.3333 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 | 155,002,309 | |
| -1 | -155,002,309 |
Let's try dividing by 4:
155,002,309 ÷ 4 = 38,750,577.25
If the quotient is a whole number, then 4 and 38,750,577.25 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 | 155,002,309 | |
| -1 | 155,002,309 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 433 | 3,031 | 4,649 | 4,763 | 32,543 | 33,341 | 51,139 | 357,973 | 2,013,017 | 14,091,119 | 22,143,187 | 155,002,309 |
| -1 | -7 | -11 | -77 | -433 | -3,031 | -4,649 | -4,763 | -32,543 | -33,341 | -51,139 | -357,973 | -2,013,017 | -14,091,119 | -22,143,187 | -155,002,309 |
Here are some more numbers to try:
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