A:
Positive:
1 x 154515355 x 309030711 x 140468555 x 280937499 x 30965563 x 274452495 x 61932815 x 5489
Negative:
-1 x -15451535-5 x -3090307-11 x -1404685-55 x -280937-499 x -30965-563 x -27445-2495 x -6193-2815 x -5489
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 15,451,535, 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 | 15,451,535 | |
| -1 | -15,451,535 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,451,535.
Example:
1 x 15,451,535 = 15,451,535
and
-1 x -15,451,535 = 15,451,535
Notice both answers equal 15,451,535
With that explanation out of the way, let's continue. Next, we take the number 15,451,535 and divide it by 2:
15,451,535 ÷ 2 = 7,725,767.5
If the quotient is a whole number, then 2 and 7,725,767.5 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 | 15,451,535 | |
| -1 | -15,451,535 |
Now, we try dividing 15,451,535 by 3:
15,451,535 ÷ 3 = 5,150,511.6667
If the quotient is a whole number, then 3 and 5,150,511.6667 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 | 15,451,535 | |
| -1 | -15,451,535 |
Let's try dividing by 4:
15,451,535 ÷ 4 = 3,862,883.75
If the quotient is a whole number, then 4 and 3,862,883.75 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 | 15,451,535 | |
| -1 | 15,451,535 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 499 | 563 | 2,495 | 2,815 | 5,489 | 6,193 | 27,445 | 30,965 | 280,937 | 1,404,685 | 3,090,307 | 15,451,535 |
| -1 | -5 | -11 | -55 | -499 | -563 | -2,495 | -2,815 | -5,489 | -6,193 | -27,445 | -30,965 | -280,937 | -1,404,685 | -3,090,307 | -15,451,535 |
Here are some more numbers to try:
Try the factor calculator