A:
Positive:
1 x 1234015255 x 2468030513 x 949242525 x 493606129 x 425522565 x 1898485145 x 851045325 x 379697377 x 327325725 x 1702091885 x 654659425 x 13093
Negative:
-1 x -123401525-5 x -24680305-13 x -9492425-25 x -4936061-29 x -4255225-65 x -1898485-145 x -851045-325 x -379697-377 x -327325-725 x -170209-1885 x -65465-9425 x -13093
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 123,401,525, 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 | 123,401,525 | |
| -1 | -123,401,525 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,401,525.
Example:
1 x 123,401,525 = 123,401,525
and
-1 x -123,401,525 = 123,401,525
Notice both answers equal 123,401,525
With that explanation out of the way, let's continue. Next, we take the number 123,401,525 and divide it by 2:
123,401,525 ÷ 2 = 61,700,762.5
If the quotient is a whole number, then 2 and 61,700,762.5 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 | 123,401,525 | |
| -1 | -123,401,525 |
Now, we try dividing 123,401,525 by 3:
123,401,525 ÷ 3 = 41,133,841.6667
If the quotient is a whole number, then 3 and 41,133,841.6667 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 | 123,401,525 | |
| -1 | -123,401,525 |
Let's try dividing by 4:
123,401,525 ÷ 4 = 30,850,381.25
If the quotient is a whole number, then 4 and 30,850,381.25 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 | 123,401,525 | |
| -1 | 123,401,525 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 29 | 65 | 145 | 325 | 377 | 725 | 1,885 | 9,425 | 13,093 | 65,465 | 170,209 | 327,325 | 379,697 | 851,045 | 1,898,485 | 4,255,225 | 4,936,061 | 9,492,425 | 24,680,305 | 123,401,525 |
| -1 | -5 | -13 | -25 | -29 | -65 | -145 | -325 | -377 | -725 | -1,885 | -9,425 | -13,093 | -65,465 | -170,209 | -327,325 | -379,697 | -851,045 | -1,898,485 | -4,255,225 | -4,936,061 | -9,492,425 | -24,680,305 | -123,401,525 |
Here are some more numbers to try:
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