A:
Positive:
1 x 510116117 x 728737317 x 3000683119 x 428669401 x 1272111069 x 477192807 x 181736817 x 7483
Negative:
-1 x -51011611-7 x -7287373-17 x -3000683-119 x -428669-401 x -127211-1069 x -47719-2807 x -18173-6817 x -7483
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 51,011,611, 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 | 51,011,611 | |
| -1 | -51,011,611 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,011,611.
Example:
1 x 51,011,611 = 51,011,611
and
-1 x -51,011,611 = 51,011,611
Notice both answers equal 51,011,611
With that explanation out of the way, let's continue. Next, we take the number 51,011,611 and divide it by 2:
51,011,611 ÷ 2 = 25,505,805.5
If the quotient is a whole number, then 2 and 25,505,805.5 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 | 51,011,611 | |
| -1 | -51,011,611 |
Now, we try dividing 51,011,611 by 3:
51,011,611 ÷ 3 = 17,003,870.3333
If the quotient is a whole number, then 3 and 17,003,870.3333 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 | 51,011,611 | |
| -1 | -51,011,611 |
Let's try dividing by 4:
51,011,611 ÷ 4 = 12,752,902.75
If the quotient is a whole number, then 4 and 12,752,902.75 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 | 51,011,611 | |
| -1 | 51,011,611 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 401 | 1,069 | 2,807 | 6,817 | 7,483 | 18,173 | 47,719 | 127,211 | 428,669 | 3,000,683 | 7,287,373 | 51,011,611 |
| -1 | -7 | -17 | -119 | -401 | -1,069 | -2,807 | -6,817 | -7,483 | -18,173 | -47,719 | -127,211 | -428,669 | -3,000,683 | -7,287,373 | -51,011,611 |
Here are some more numbers to try:
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