A:
Positive:
1 x 153745455 x 307490917 x 90438585 x 180877191 x 80495947 x 16235955 x 160993247 x 4735
Negative:
-1 x -15374545-5 x -3074909-17 x -904385-85 x -180877-191 x -80495-947 x -16235-955 x -16099-3247 x -4735
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 15,374,545, 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 | 15,374,545 | |
| -1 | -15,374,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,374,545.
Example:
1 x 15,374,545 = 15,374,545
and
-1 x -15,374,545 = 15,374,545
Notice both answers equal 15,374,545
With that explanation out of the way, let's continue. Next, we take the number 15,374,545 and divide it by 2:
15,374,545 ÷ 2 = 7,687,272.5
If the quotient is a whole number, then 2 and 7,687,272.5 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 | 15,374,545 | |
| -1 | -15,374,545 |
Now, we try dividing 15,374,545 by 3:
15,374,545 ÷ 3 = 5,124,848.3333
If the quotient is a whole number, then 3 and 5,124,848.3333 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 | 15,374,545 | |
| -1 | -15,374,545 |
Let's try dividing by 4:
15,374,545 ÷ 4 = 3,843,636.25
If the quotient is a whole number, then 4 and 3,843,636.25 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 | 15,374,545 | |
| -1 | 15,374,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 191 | 947 | 955 | 3,247 | 4,735 | 16,099 | 16,235 | 80,495 | 180,877 | 904,385 | 3,074,909 | 15,374,545 |
| -1 | -5 | -17 | -85 | -191 | -947 | -955 | -3,247 | -4,735 | -16,099 | -16,235 | -80,495 | -180,877 | -904,385 | -3,074,909 | -15,374,545 |
Here are some more numbers to try:
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