A:
Positive:
1 x 1340285055 x 2680570113 x 1030988565 x 2061977683 x 1962353019 x 443953415 x 392478879 x 15095
Negative:
-1 x -134028505-5 x -26805701-13 x -10309885-65 x -2061977-683 x -196235-3019 x -44395-3415 x -39247-8879 x -15095
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 134,028,505, 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 | 134,028,505 | |
| -1 | -134,028,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 134,028,505.
Example:
1 x 134,028,505 = 134,028,505
and
-1 x -134,028,505 = 134,028,505
Notice both answers equal 134,028,505
With that explanation out of the way, let's continue. Next, we take the number 134,028,505 and divide it by 2:
134,028,505 ÷ 2 = 67,014,252.5
If the quotient is a whole number, then 2 and 67,014,252.5 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 | 134,028,505 | |
| -1 | -134,028,505 |
Now, we try dividing 134,028,505 by 3:
134,028,505 ÷ 3 = 44,676,168.3333
If the quotient is a whole number, then 3 and 44,676,168.3333 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 | 134,028,505 | |
| -1 | -134,028,505 |
Let's try dividing by 4:
134,028,505 ÷ 4 = 33,507,126.25
If the quotient is a whole number, then 4 and 33,507,126.25 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 | 134,028,505 | |
| -1 | 134,028,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 683 | 3,019 | 3,415 | 8,879 | 15,095 | 39,247 | 44,395 | 196,235 | 2,061,977 | 10,309,885 | 26,805,701 | 134,028,505 |
| -1 | -5 | -13 | -65 | -683 | -3,019 | -3,415 | -8,879 | -15,095 | -39,247 | -44,395 | -196,235 | -2,061,977 | -10,309,885 | -26,805,701 | -134,028,505 |
Here are some more numbers to try:
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