A:
Positive:
1 x 120302655 x 240605313 x 92540523 x 52305565 x 185081115 x 104611169 x 71185299 x 40235619 x 19435845 x 142371495 x 80473095 x 3887
Negative:
-1 x -12030265-5 x -2406053-13 x -925405-23 x -523055-65 x -185081-115 x -104611-169 x -71185-299 x -40235-619 x -19435-845 x -14237-1495 x -8047-3095 x -3887
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 12,030,265, 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 | 12,030,265 | |
| -1 | -12,030,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,030,265.
Example:
1 x 12,030,265 = 12,030,265
and
-1 x -12,030,265 = 12,030,265
Notice both answers equal 12,030,265
With that explanation out of the way, let's continue. Next, we take the number 12,030,265 and divide it by 2:
12,030,265 ÷ 2 = 6,015,132.5
If the quotient is a whole number, then 2 and 6,015,132.5 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 | 12,030,265 | |
| -1 | -12,030,265 |
Now, we try dividing 12,030,265 by 3:
12,030,265 ÷ 3 = 4,010,088.3333
If the quotient is a whole number, then 3 and 4,010,088.3333 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 | 12,030,265 | |
| -1 | -12,030,265 |
Let's try dividing by 4:
12,030,265 ÷ 4 = 3,007,566.25
If the quotient is a whole number, then 4 and 3,007,566.25 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 | 12,030,265 | |
| -1 | 12,030,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 169 | 299 | 619 | 845 | 1,495 | 3,095 | 3,887 | 8,047 | 14,237 | 19,435 | 40,235 | 71,185 | 104,611 | 185,081 | 523,055 | 925,405 | 2,406,053 | 12,030,265 |
| -1 | -5 | -13 | -23 | -65 | -115 | -169 | -299 | -619 | -845 | -1,495 | -3,095 | -3,887 | -8,047 | -14,237 | -19,435 | -40,235 | -71,185 | -104,611 | -185,081 | -523,055 | -925,405 | -2,406,053 | -12,030,265 |
Here are some more numbers to try:
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