A:
Positive:
1 x 155000237 x 221428911 x 140909349 x 31632777 x 201299149 x 104027193 x 80311539 x 287571043 x 148611351 x 114731639 x 94572123 x 7301
Negative:
-1 x -15500023-7 x -2214289-11 x -1409093-49 x -316327-77 x -201299-149 x -104027-193 x -80311-539 x -28757-1043 x -14861-1351 x -11473-1639 x -9457-2123 x -7301
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 15,500,023, 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 | 15,500,023 | |
| -1 | -15,500,023 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,500,023.
Example:
1 x 15,500,023 = 15,500,023
and
-1 x -15,500,023 = 15,500,023
Notice both answers equal 15,500,023
With that explanation out of the way, let's continue. Next, we take the number 15,500,023 and divide it by 2:
15,500,023 ÷ 2 = 7,750,011.5
If the quotient is a whole number, then 2 and 7,750,011.5 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 | 15,500,023 | |
| -1 | -15,500,023 |
Now, we try dividing 15,500,023 by 3:
15,500,023 ÷ 3 = 5,166,674.3333
If the quotient is a whole number, then 3 and 5,166,674.3333 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 | 15,500,023 | |
| -1 | -15,500,023 |
Let's try dividing by 4:
15,500,023 ÷ 4 = 3,875,005.75
If the quotient is a whole number, then 4 and 3,875,005.75 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 | 15,500,023 | |
| -1 | 15,500,023 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 49 | 77 | 149 | 193 | 539 | 1,043 | 1,351 | 1,639 | 2,123 | 7,301 | 9,457 | 11,473 | 14,861 | 28,757 | 80,311 | 104,027 | 201,299 | 316,327 | 1,409,093 | 2,214,289 | 15,500,023 |
| -1 | -7 | -11 | -49 | -77 | -149 | -193 | -539 | -1,043 | -1,351 | -1,639 | -2,123 | -7,301 | -9,457 | -11,473 | -14,861 | -28,757 | -80,311 | -104,027 | -201,299 | -316,327 | -1,409,093 | -2,214,289 | -15,500,023 |
Here are some more numbers to try:
Try the factor calculator