A:
Positive:
1 x 703205055 x 1406410129 x 242484583 x 847235145 x 484969415 x 1694472407 x 292155843 x 12035
Negative:
-1 x -70320505-5 x -14064101-29 x -2424845-83 x -847235-145 x -484969-415 x -169447-2407 x -29215-5843 x -12035
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 70,320,505, 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 | 70,320,505 | |
| -1 | -70,320,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,320,505.
Example:
1 x 70,320,505 = 70,320,505
and
-1 x -70,320,505 = 70,320,505
Notice both answers equal 70,320,505
With that explanation out of the way, let's continue. Next, we take the number 70,320,505 and divide it by 2:
70,320,505 ÷ 2 = 35,160,252.5
If the quotient is a whole number, then 2 and 35,160,252.5 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 | 70,320,505 | |
| -1 | -70,320,505 |
Now, we try dividing 70,320,505 by 3:
70,320,505 ÷ 3 = 23,440,168.3333
If the quotient is a whole number, then 3 and 23,440,168.3333 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 | 70,320,505 | |
| -1 | -70,320,505 |
Let's try dividing by 4:
70,320,505 ÷ 4 = 17,580,126.25
If the quotient is a whole number, then 4 and 17,580,126.25 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 | 70,320,505 | |
| -1 | 70,320,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 83 | 145 | 415 | 2,407 | 5,843 | 12,035 | 29,215 | 169,447 | 484,969 | 847,235 | 2,424,845 | 14,064,101 | 70,320,505 |
| -1 | -5 | -29 | -83 | -145 | -415 | -2,407 | -5,843 | -12,035 | -29,215 | -169,447 | -484,969 | -847,235 | -2,424,845 | -14,064,101 | -70,320,505 |
Here are some more numbers to try:
Try the factor calculator