A:
Positive:
1 x 154163455 x 30832697 x 220233535 x 440467151 x 102095755 x 204191057 x 145852917 x 5285
Negative:
-1 x -15416345-5 x -3083269-7 x -2202335-35 x -440467-151 x -102095-755 x -20419-1057 x -14585-2917 x -5285
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 15,416,345, 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 | 15,416,345 | |
| -1 | -15,416,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,416,345.
Example:
1 x 15,416,345 = 15,416,345
and
-1 x -15,416,345 = 15,416,345
Notice both answers equal 15,416,345
With that explanation out of the way, let's continue. Next, we take the number 15,416,345 and divide it by 2:
15,416,345 ÷ 2 = 7,708,172.5
If the quotient is a whole number, then 2 and 7,708,172.5 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 | 15,416,345 | |
| -1 | -15,416,345 |
Now, we try dividing 15,416,345 by 3:
15,416,345 ÷ 3 = 5,138,781.6667
If the quotient is a whole number, then 3 and 5,138,781.6667 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 | 15,416,345 | |
| -1 | -15,416,345 |
Let's try dividing by 4:
15,416,345 ÷ 4 = 3,854,086.25
If the quotient is a whole number, then 4 and 3,854,086.25 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 | 15,416,345 | |
| -1 | 15,416,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 151 | 755 | 1,057 | 2,917 | 5,285 | 14,585 | 20,419 | 102,095 | 440,467 | 2,202,335 | 3,083,269 | 15,416,345 |
| -1 | -5 | -7 | -35 | -151 | -755 | -1,057 | -2,917 | -5,285 | -14,585 | -20,419 | -102,095 | -440,467 | -2,202,335 | -3,083,269 | -15,416,345 |
Here are some more numbers to try:
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