A:
Positive:
1 x 150476155 x 300952311 x 136796541 x 36701555 x 273593205 x 73403451 x 333652255 x 6673
Negative:
-1 x -15047615-5 x -3009523-11 x -1367965-41 x -367015-55 x -273593-205 x -73403-451 x -33365-2255 x -6673
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 15,047,615, 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 | 15,047,615 | |
| -1 | -15,047,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,047,615.
Example:
1 x 15,047,615 = 15,047,615
and
-1 x -15,047,615 = 15,047,615
Notice both answers equal 15,047,615
With that explanation out of the way, let's continue. Next, we take the number 15,047,615 and divide it by 2:
15,047,615 ÷ 2 = 7,523,807.5
If the quotient is a whole number, then 2 and 7,523,807.5 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 | 15,047,615 | |
| -1 | -15,047,615 |
Now, we try dividing 15,047,615 by 3:
15,047,615 ÷ 3 = 5,015,871.6667
If the quotient is a whole number, then 3 and 5,015,871.6667 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 | 15,047,615 | |
| -1 | -15,047,615 |
Let's try dividing by 4:
15,047,615 ÷ 4 = 3,761,903.75
If the quotient is a whole number, then 4 and 3,761,903.75 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 | 15,047,615 | |
| -1 | 15,047,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 41 | 55 | 205 | 451 | 2,255 | 6,673 | 33,365 | 73,403 | 273,593 | 367,015 | 1,367,965 | 3,009,523 | 15,047,615 |
| -1 | -5 | -11 | -41 | -55 | -205 | -451 | -2,255 | -6,673 | -33,365 | -73,403 | -273,593 | -367,015 | -1,367,965 | -3,009,523 | -15,047,615 |
Here are some more numbers to try:
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