A:
Positive:
1 x 300515655 x 601031341 x 73296547 x 639395205 x 146593235 x 1278791927 x 155953119 x 9635
Negative:
-1 x -30051565-5 x -6010313-41 x -732965-47 x -639395-205 x -146593-235 x -127879-1927 x -15595-3119 x -9635
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 30,051,565, 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 | 30,051,565 | |
| -1 | -30,051,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,051,565.
Example:
1 x 30,051,565 = 30,051,565
and
-1 x -30,051,565 = 30,051,565
Notice both answers equal 30,051,565
With that explanation out of the way, let's continue. Next, we take the number 30,051,565 and divide it by 2:
30,051,565 ÷ 2 = 15,025,782.5
If the quotient is a whole number, then 2 and 15,025,782.5 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 | 30,051,565 | |
| -1 | -30,051,565 |
Now, we try dividing 30,051,565 by 3:
30,051,565 ÷ 3 = 10,017,188.3333
If the quotient is a whole number, then 3 and 10,017,188.3333 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 | 30,051,565 | |
| -1 | -30,051,565 |
Let's try dividing by 4:
30,051,565 ÷ 4 = 7,512,891.25
If the quotient is a whole number, then 4 and 7,512,891.25 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 | 30,051,565 | |
| -1 | 30,051,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 47 | 205 | 235 | 1,927 | 3,119 | 9,635 | 15,595 | 127,879 | 146,593 | 639,395 | 732,965 | 6,010,313 | 30,051,565 |
| -1 | -5 | -41 | -47 | -205 | -235 | -1,927 | -3,119 | -9,635 | -15,595 | -127,879 | -146,593 | -639,395 | -732,965 | -6,010,313 | -30,051,565 |
Here are some more numbers to try:
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