A:
Positive:
1 x 1547443711 x 140676717 x 91026183 x 186439187 x 82751913 x 16949997 x 155211411 x 10967
Negative:
-1 x -15474437-11 x -1406767-17 x -910261-83 x -186439-187 x -82751-913 x -16949-997 x -15521-1411 x -10967
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 15,474,437, 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 | 15,474,437 | |
| -1 | -15,474,437 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,474,437.
Example:
1 x 15,474,437 = 15,474,437
and
-1 x -15,474,437 = 15,474,437
Notice both answers equal 15,474,437
With that explanation out of the way, let's continue. Next, we take the number 15,474,437 and divide it by 2:
15,474,437 ÷ 2 = 7,737,218.5
If the quotient is a whole number, then 2 and 7,737,218.5 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 | 15,474,437 | |
| -1 | -15,474,437 |
Now, we try dividing 15,474,437 by 3:
15,474,437 ÷ 3 = 5,158,145.6667
If the quotient is a whole number, then 3 and 5,158,145.6667 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 | 15,474,437 | |
| -1 | -15,474,437 |
Let's try dividing by 4:
15,474,437 ÷ 4 = 3,868,609.25
If the quotient is a whole number, then 4 and 3,868,609.25 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 | 15,474,437 | |
| -1 | 15,474,437 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 83 | 187 | 913 | 997 | 1,411 | 10,967 | 15,521 | 16,949 | 82,751 | 186,439 | 910,261 | 1,406,767 | 15,474,437 |
| -1 | -11 | -17 | -83 | -187 | -913 | -997 | -1,411 | -10,967 | -15,521 | -16,949 | -82,751 | -186,439 | -910,261 | -1,406,767 | -15,474,437 |
Here are some more numbers to try:
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