A:
Positive:
1 x 154166155 x 308332341 x 376015157 x 98195205 x 75203479 x 32185785 x 196392395 x 6437
Negative:
-1 x -15416615-5 x -3083323-41 x -376015-157 x -98195-205 x -75203-479 x -32185-785 x -19639-2395 x -6437
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 15,416,615, 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 | 15,416,615 | |
| -1 | -15,416,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,416,615.
Example:
1 x 15,416,615 = 15,416,615
and
-1 x -15,416,615 = 15,416,615
Notice both answers equal 15,416,615
With that explanation out of the way, let's continue. Next, we take the number 15,416,615 and divide it by 2:
15,416,615 ÷ 2 = 7,708,307.5
If the quotient is a whole number, then 2 and 7,708,307.5 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 | 15,416,615 | |
| -1 | -15,416,615 |
Now, we try dividing 15,416,615 by 3:
15,416,615 ÷ 3 = 5,138,871.6667
If the quotient is a whole number, then 3 and 5,138,871.6667 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 | 15,416,615 | |
| -1 | -15,416,615 |
Let's try dividing by 4:
15,416,615 ÷ 4 = 3,854,153.75
If the quotient is a whole number, then 4 and 3,854,153.75 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 | 15,416,615 | |
| -1 | 15,416,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 157 | 205 | 479 | 785 | 2,395 | 6,437 | 19,639 | 32,185 | 75,203 | 98,195 | 376,015 | 3,083,323 | 15,416,615 |
| -1 | -5 | -41 | -157 | -205 | -479 | -785 | -2,395 | -6,437 | -19,639 | -32,185 | -75,203 | -98,195 | -376,015 | -3,083,323 | -15,416,615 |
Here are some more numbers to try:
Try the factor calculator