A:
Positive:
1 x 642007737 x 917153913 x 493852189 x 72135791 x 705503623 x 1030511157 x 554897927 x 8099
Negative:
-1 x -64200773-7 x -9171539-13 x -4938521-89 x -721357-91 x -705503-623 x -103051-1157 x -55489-7927 x -8099
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 64,200,773, 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 | 64,200,773 | |
| -1 | -64,200,773 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,200,773.
Example:
1 x 64,200,773 = 64,200,773
and
-1 x -64,200,773 = 64,200,773
Notice both answers equal 64,200,773
With that explanation out of the way, let's continue. Next, we take the number 64,200,773 and divide it by 2:
64,200,773 ÷ 2 = 32,100,386.5
If the quotient is a whole number, then 2 and 32,100,386.5 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 | 64,200,773 | |
| -1 | -64,200,773 |
Now, we try dividing 64,200,773 by 3:
64,200,773 ÷ 3 = 21,400,257.6667
If the quotient is a whole number, then 3 and 21,400,257.6667 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 | 64,200,773 | |
| -1 | -64,200,773 |
Let's try dividing by 4:
64,200,773 ÷ 4 = 16,050,193.25
If the quotient is a whole number, then 4 and 16,050,193.25 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 | 64,200,773 | |
| -1 | 64,200,773 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 89 | 91 | 623 | 1,157 | 7,927 | 8,099 | 55,489 | 103,051 | 705,503 | 721,357 | 4,938,521 | 9,171,539 | 64,200,773 |
| -1 | -7 | -13 | -89 | -91 | -623 | -1,157 | -7,927 | -8,099 | -55,489 | -103,051 | -705,503 | -721,357 | -4,938,521 | -9,171,539 | -64,200,773 |
Here are some more numbers to try:
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