A:
Positive:
1 x 1025404455 x 205080897 x 1464863535 x 2929727619 x 1656553095 x 331314333 x 236654733 x 21665
Negative:
-1 x -102540445-5 x -20508089-7 x -14648635-35 x -2929727-619 x -165655-3095 x -33131-4333 x -23665-4733 x -21665
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 102,540,445, 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 | 102,540,445 | |
| -1 | -102,540,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,540,445.
Example:
1 x 102,540,445 = 102,540,445
and
-1 x -102,540,445 = 102,540,445
Notice both answers equal 102,540,445
With that explanation out of the way, let's continue. Next, we take the number 102,540,445 and divide it by 2:
102,540,445 ÷ 2 = 51,270,222.5
If the quotient is a whole number, then 2 and 51,270,222.5 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 | 102,540,445 | |
| -1 | -102,540,445 |
Now, we try dividing 102,540,445 by 3:
102,540,445 ÷ 3 = 34,180,148.3333
If the quotient is a whole number, then 3 and 34,180,148.3333 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 | 102,540,445 | |
| -1 | -102,540,445 |
Let's try dividing by 4:
102,540,445 ÷ 4 = 25,635,111.25
If the quotient is a whole number, then 4 and 25,635,111.25 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 | 102,540,445 | |
| -1 | 102,540,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 619 | 3,095 | 4,333 | 4,733 | 21,665 | 23,665 | 33,131 | 165,655 | 2,929,727 | 14,648,635 | 20,508,089 | 102,540,445 |
| -1 | -5 | -7 | -35 | -619 | -3,095 | -4,333 | -4,733 | -21,665 | -23,665 | -33,131 | -165,655 | -2,929,727 | -14,648,635 | -20,508,089 | -102,540,445 |
Here are some more numbers to try:
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