A:
Positive:
1 x 76384755 x 152769513 x 58757519 x 40202525 x 30553965 x 11751595 x 80405247 x 30925325 x 23503475 x 160811235 x 61851237 x 6175
Negative:
-1 x -7638475-5 x -1527695-13 x -587575-19 x -402025-25 x -305539-65 x -117515-95 x -80405-247 x -30925-325 x -23503-475 x -16081-1235 x -6185-1237 x -6175
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 7,638,475, 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 | 7,638,475 | |
| -1 | -7,638,475 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,638,475.
Example:
1 x 7,638,475 = 7,638,475
and
-1 x -7,638,475 = 7,638,475
Notice both answers equal 7,638,475
With that explanation out of the way, let's continue. Next, we take the number 7,638,475 and divide it by 2:
7,638,475 ÷ 2 = 3,819,237.5
If the quotient is a whole number, then 2 and 3,819,237.5 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 | 7,638,475 | |
| -1 | -7,638,475 |
Now, we try dividing 7,638,475 by 3:
7,638,475 ÷ 3 = 2,546,158.3333
If the quotient is a whole number, then 3 and 2,546,158.3333 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 | 7,638,475 | |
| -1 | -7,638,475 |
Let's try dividing by 4:
7,638,475 ÷ 4 = 1,909,618.75
If the quotient is a whole number, then 4 and 1,909,618.75 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 | 7,638,475 | |
| -1 | 7,638,475 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 25 | 65 | 95 | 247 | 325 | 475 | 1,235 | 1,237 | 6,175 | 6,185 | 16,081 | 23,503 | 30,925 | 80,405 | 117,515 | 305,539 | 402,025 | 587,575 | 1,527,695 | 7,638,475 |
| -1 | -5 | -13 | -19 | -25 | -65 | -95 | -247 | -325 | -475 | -1,235 | -1,237 | -6,175 | -6,185 | -16,081 | -23,503 | -30,925 | -80,405 | -117,515 | -305,539 | -402,025 | -587,575 | -1,527,695 | -7,638,475 |
Here are some more numbers to try:
Try the factor calculator