A:
Positive:
1 x 122721955 x 245443913 x 94401519 x 64590565 x 18880395 x 129181247 x 49685361 x 33995523 x 234651235 x 99371805 x 67992615 x 4693
Negative:
-1 x -12272195-5 x -2454439-13 x -944015-19 x -645905-65 x -188803-95 x -129181-247 x -49685-361 x -33995-523 x -23465-1235 x -9937-1805 x -6799-2615 x -4693
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 12,272,195, 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 | 12,272,195 | |
| -1 | -12,272,195 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,272,195.
Example:
1 x 12,272,195 = 12,272,195
and
-1 x -12,272,195 = 12,272,195
Notice both answers equal 12,272,195
With that explanation out of the way, let's continue. Next, we take the number 12,272,195 and divide it by 2:
12,272,195 ÷ 2 = 6,136,097.5
If the quotient is a whole number, then 2 and 6,136,097.5 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 | 12,272,195 | |
| -1 | -12,272,195 |
Now, we try dividing 12,272,195 by 3:
12,272,195 ÷ 3 = 4,090,731.6667
If the quotient is a whole number, then 3 and 4,090,731.6667 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 | 12,272,195 | |
| -1 | -12,272,195 |
Let's try dividing by 4:
12,272,195 ÷ 4 = 3,068,048.75
If the quotient is a whole number, then 4 and 3,068,048.75 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 | 12,272,195 | |
| -1 | 12,272,195 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 65 | 95 | 247 | 361 | 523 | 1,235 | 1,805 | 2,615 | 4,693 | 6,799 | 9,937 | 23,465 | 33,995 | 49,685 | 129,181 | 188,803 | 645,905 | 944,015 | 2,454,439 | 12,272,195 |
| -1 | -5 | -13 | -19 | -65 | -95 | -247 | -361 | -523 | -1,235 | -1,805 | -2,615 | -4,693 | -6,799 | -9,937 | -23,465 | -33,995 | -49,685 | -129,181 | -188,803 | -645,905 | -944,015 | -2,454,439 | -12,272,195 |
Here are some more numbers to try:
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