A:
Positive:
1 x 123472255 x 246944511 x 112247525 x 49388955 x 22449559 x 209275275 x 44899295 x 41855649 x 19025761 x 162251475 x 83713245 x 3805
Negative:
-1 x -12347225-5 x -2469445-11 x -1122475-25 x -493889-55 x -224495-59 x -209275-275 x -44899-295 x -41855-649 x -19025-761 x -16225-1475 x -8371-3245 x -3805
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 12,347,225, 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 | 12,347,225 | |
| -1 | -12,347,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,347,225.
Example:
1 x 12,347,225 = 12,347,225
and
-1 x -12,347,225 = 12,347,225
Notice both answers equal 12,347,225
With that explanation out of the way, let's continue. Next, we take the number 12,347,225 and divide it by 2:
12,347,225 ÷ 2 = 6,173,612.5
If the quotient is a whole number, then 2 and 6,173,612.5 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 | 12,347,225 | |
| -1 | -12,347,225 |
Now, we try dividing 12,347,225 by 3:
12,347,225 ÷ 3 = 4,115,741.6667
If the quotient is a whole number, then 3 and 4,115,741.6667 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 | 12,347,225 | |
| -1 | -12,347,225 |
Let's try dividing by 4:
12,347,225 ÷ 4 = 3,086,806.25
If the quotient is a whole number, then 4 and 3,086,806.25 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 | 12,347,225 | |
| -1 | 12,347,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 59 | 275 | 295 | 649 | 761 | 1,475 | 3,245 | 3,805 | 8,371 | 16,225 | 19,025 | 41,855 | 44,899 | 209,275 | 224,495 | 493,889 | 1,122,475 | 2,469,445 | 12,347,225 |
| -1 | -5 | -11 | -25 | -55 | -59 | -275 | -295 | -649 | -761 | -1,475 | -3,245 | -3,805 | -8,371 | -16,225 | -19,025 | -41,855 | -44,899 | -209,275 | -224,495 | -493,889 | -1,122,475 | -2,469,445 | -12,347,225 |
Here are some more numbers to try:
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