A:
Positive:
1 x 1250615311 x 113692367 x 18665971 x 176143239 x 52327737 x 16969781 x 160132629 x 4757
Negative:
-1 x -12506153-11 x -1136923-67 x -186659-71 x -176143-239 x -52327-737 x -16969-781 x -16013-2629 x -4757
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 12,506,153, 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 | 12,506,153 | |
| -1 | -12,506,153 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,506,153.
Example:
1 x 12,506,153 = 12,506,153
and
-1 x -12,506,153 = 12,506,153
Notice both answers equal 12,506,153
With that explanation out of the way, let's continue. Next, we take the number 12,506,153 and divide it by 2:
12,506,153 ÷ 2 = 6,253,076.5
If the quotient is a whole number, then 2 and 6,253,076.5 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 | 12,506,153 | |
| -1 | -12,506,153 |
Now, we try dividing 12,506,153 by 3:
12,506,153 ÷ 3 = 4,168,717.6667
If the quotient is a whole number, then 3 and 4,168,717.6667 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 | 12,506,153 | |
| -1 | -12,506,153 |
Let's try dividing by 4:
12,506,153 ÷ 4 = 3,126,538.25
If the quotient is a whole number, then 4 and 3,126,538.25 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 | 12,506,153 | |
| -1 | 12,506,153 |
If you did it right, you will end up with this table:
| 1 | 11 | 67 | 71 | 239 | 737 | 781 | 2,629 | 4,757 | 16,013 | 16,969 | 52,327 | 176,143 | 186,659 | 1,136,923 | 12,506,153 |
| -1 | -11 | -67 | -71 | -239 | -737 | -781 | -2,629 | -4,757 | -16,013 | -16,969 | -52,327 | -176,143 | -186,659 | -1,136,923 | -12,506,153 |
Here are some more numbers to try:
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