A:
Positive:
1 x 1551067111 x 141006123 x 674377101 x 153571253 x 61307607 x 255531111 x 139612323 x 6677
Negative:
-1 x -15510671-11 x -1410061-23 x -674377-101 x -153571-253 x -61307-607 x -25553-1111 x -13961-2323 x -6677
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 15,510,671, 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 | 15,510,671 | |
| -1 | -15,510,671 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,510,671.
Example:
1 x 15,510,671 = 15,510,671
and
-1 x -15,510,671 = 15,510,671
Notice both answers equal 15,510,671
With that explanation out of the way, let's continue. Next, we take the number 15,510,671 and divide it by 2:
15,510,671 ÷ 2 = 7,755,335.5
If the quotient is a whole number, then 2 and 7,755,335.5 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 | 15,510,671 | |
| -1 | -15,510,671 |
Now, we try dividing 15,510,671 by 3:
15,510,671 ÷ 3 = 5,170,223.6667
If the quotient is a whole number, then 3 and 5,170,223.6667 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 | 15,510,671 | |
| -1 | -15,510,671 |
Let's try dividing by 4:
15,510,671 ÷ 4 = 3,877,667.75
If the quotient is a whole number, then 4 and 3,877,667.75 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 | 15,510,671 | |
| -1 | 15,510,671 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 101 | 253 | 607 | 1,111 | 2,323 | 6,677 | 13,961 | 25,553 | 61,307 | 153,571 | 674,377 | 1,410,061 | 15,510,671 |
| -1 | -11 | -23 | -101 | -253 | -607 | -1,111 | -2,323 | -6,677 | -13,961 | -25,553 | -61,307 | -153,571 | -674,377 | -1,410,061 | -15,510,671 |
Here are some more numbers to try:
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