A:
Positive:
1 x 656445655 x 131289137 x 937779517 x 386144535 x 187555949 x 133968585 x 772289119 x 551635245 x 267937595 x 110327833 x 788054165 x 15761
Negative:
-1 x -65644565-5 x -13128913-7 x -9377795-17 x -3861445-35 x -1875559-49 x -1339685-85 x -772289-119 x -551635-245 x -267937-595 x -110327-833 x -78805-4165 x -15761
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 65,644,565, 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 | 65,644,565 | |
| -1 | -65,644,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 65,644,565.
Example:
1 x 65,644,565 = 65,644,565
and
-1 x -65,644,565 = 65,644,565
Notice both answers equal 65,644,565
With that explanation out of the way, let's continue. Next, we take the number 65,644,565 and divide it by 2:
65,644,565 ÷ 2 = 32,822,282.5
If the quotient is a whole number, then 2 and 32,822,282.5 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 | 65,644,565 | |
| -1 | -65,644,565 |
Now, we try dividing 65,644,565 by 3:
65,644,565 ÷ 3 = 21,881,521.6667
If the quotient is a whole number, then 3 and 21,881,521.6667 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 | 65,644,565 | |
| -1 | -65,644,565 |
Let's try dividing by 4:
65,644,565 ÷ 4 = 16,411,141.25
If the quotient is a whole number, then 4 and 16,411,141.25 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 | 65,644,565 | |
| -1 | 65,644,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 49 | 85 | 119 | 245 | 595 | 833 | 4,165 | 15,761 | 78,805 | 110,327 | 267,937 | 551,635 | 772,289 | 1,339,685 | 1,875,559 | 3,861,445 | 9,377,795 | 13,128,913 | 65,644,565 |
| -1 | -5 | -7 | -17 | -35 | -49 | -85 | -119 | -245 | -595 | -833 | -4,165 | -15,761 | -78,805 | -110,327 | -267,937 | -551,635 | -772,289 | -1,339,685 | -1,875,559 | -3,861,445 | -9,377,795 | -13,128,913 | -65,644,565 |
Here are some more numbers to try:
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