A:
Positive:
1 x 4210420753 x 79441967 x 62842171 x 593017167 x 2521213551 x 118573763 x 111894757 x 8851
Negative:
-1 x -42104207-53 x -794419-67 x -628421-71 x -593017-167 x -252121-3551 x -11857-3763 x -11189-4757 x -8851
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 42,104,207, 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 | 42,104,207 | |
| -1 | -42,104,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,104,207.
Example:
1 x 42,104,207 = 42,104,207
and
-1 x -42,104,207 = 42,104,207
Notice both answers equal 42,104,207
With that explanation out of the way, let's continue. Next, we take the number 42,104,207 and divide it by 2:
42,104,207 ÷ 2 = 21,052,103.5
If the quotient is a whole number, then 2 and 21,052,103.5 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 | 42,104,207 | |
| -1 | -42,104,207 |
Now, we try dividing 42,104,207 by 3:
42,104,207 ÷ 3 = 14,034,735.6667
If the quotient is a whole number, then 3 and 14,034,735.6667 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 | 42,104,207 | |
| -1 | -42,104,207 |
Let's try dividing by 4:
42,104,207 ÷ 4 = 10,526,051.75
If the quotient is a whole number, then 4 and 10,526,051.75 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 | 42,104,207 | |
| -1 | 42,104,207 |
If you did it right, you will end up with this table:
| 1 | 53 | 67 | 71 | 167 | 3,551 | 3,763 | 4,757 | 8,851 | 11,189 | 11,857 | 252,121 | 593,017 | 628,421 | 794,419 | 42,104,207 |
| -1 | -53 | -67 | -71 | -167 | -3,551 | -3,763 | -4,757 | -8,851 | -11,189 | -11,857 | -252,121 | -593,017 | -628,421 | -794,419 | -42,104,207 |
Here are some more numbers to try:
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