A:
Positive:
1 x 81031517 x 115759329 x 279419179 x 45269203 x 39917223 x 363371253 x 64671561 x 5191
Negative:
-1 x -8103151-7 x -1157593-29 x -279419-179 x -45269-203 x -39917-223 x -36337-1253 x -6467-1561 x -5191
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 8,103,151, 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 | 8,103,151 | |
| -1 | -8,103,151 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,103,151.
Example:
1 x 8,103,151 = 8,103,151
and
-1 x -8,103,151 = 8,103,151
Notice both answers equal 8,103,151
With that explanation out of the way, let's continue. Next, we take the number 8,103,151 and divide it by 2:
8,103,151 ÷ 2 = 4,051,575.5
If the quotient is a whole number, then 2 and 4,051,575.5 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 | 8,103,151 | |
| -1 | -8,103,151 |
Now, we try dividing 8,103,151 by 3:
8,103,151 ÷ 3 = 2,701,050.3333
If the quotient is a whole number, then 3 and 2,701,050.3333 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 | 8,103,151 | |
| -1 | -8,103,151 |
Let's try dividing by 4:
8,103,151 ÷ 4 = 2,025,787.75
If the quotient is a whole number, then 4 and 2,025,787.75 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 | 8,103,151 | |
| -1 | 8,103,151 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 179 | 203 | 223 | 1,253 | 1,561 | 5,191 | 6,467 | 36,337 | 39,917 | 45,269 | 279,419 | 1,157,593 | 8,103,151 |
| -1 | -7 | -29 | -179 | -203 | -223 | -1,253 | -1,561 | -5,191 | -6,467 | -36,337 | -39,917 | -45,269 | -279,419 | -1,157,593 | -8,103,151 |
Here are some more numbers to try:
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