A:
Positive:
1 x 1560367737 x 42172153 x 29440973 x 213749109 x 1431531961 x 79572701 x 57773869 x 4033
Negative:
-1 x -15603677-37 x -421721-53 x -294409-73 x -213749-109 x -143153-1961 x -7957-2701 x -5777-3869 x -4033
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 15,603,677, 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 | 15,603,677 | |
| -1 | -15,603,677 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,603,677.
Example:
1 x 15,603,677 = 15,603,677
and
-1 x -15,603,677 = 15,603,677
Notice both answers equal 15,603,677
With that explanation out of the way, let's continue. Next, we take the number 15,603,677 and divide it by 2:
15,603,677 ÷ 2 = 7,801,838.5
If the quotient is a whole number, then 2 and 7,801,838.5 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 | 15,603,677 | |
| -1 | -15,603,677 |
Now, we try dividing 15,603,677 by 3:
15,603,677 ÷ 3 = 5,201,225.6667
If the quotient is a whole number, then 3 and 5,201,225.6667 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 | 15,603,677 | |
| -1 | -15,603,677 |
Let's try dividing by 4:
15,603,677 ÷ 4 = 3,900,919.25
If the quotient is a whole number, then 4 and 3,900,919.25 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 | 15,603,677 | |
| -1 | 15,603,677 |
If you did it right, you will end up with this table:
| 1 | 37 | 53 | 73 | 109 | 1,961 | 2,701 | 3,869 | 4,033 | 5,777 | 7,957 | 143,153 | 213,749 | 294,409 | 421,721 | 15,603,677 |
| -1 | -37 | -53 | -73 | -109 | -1,961 | -2,701 | -3,869 | -4,033 | -5,777 | -7,957 | -143,153 | -213,749 | -294,409 | -421,721 | -15,603,677 |
Here are some more numbers to try:
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