A:
Positive:
1 x 1457404855 x 2914809711 x 1324913555 x 264982773 x 1996445365 x 399289803 x 1814954015 x 36299
Negative:
-1 x -145740485-5 x -29148097-11 x -13249135-55 x -2649827-73 x -1996445-365 x -399289-803 x -181495-4015 x -36299
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 145,740,485, 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 | 145,740,485 | |
| -1 | -145,740,485 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,740,485.
Example:
1 x 145,740,485 = 145,740,485
and
-1 x -145,740,485 = 145,740,485
Notice both answers equal 145,740,485
With that explanation out of the way, let's continue. Next, we take the number 145,740,485 and divide it by 2:
145,740,485 ÷ 2 = 72,870,242.5
If the quotient is a whole number, then 2 and 72,870,242.5 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 | 145,740,485 | |
| -1 | -145,740,485 |
Now, we try dividing 145,740,485 by 3:
145,740,485 ÷ 3 = 48,580,161.6667
If the quotient is a whole number, then 3 and 48,580,161.6667 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 | 145,740,485 | |
| -1 | -145,740,485 |
Let's try dividing by 4:
145,740,485 ÷ 4 = 36,435,121.25
If the quotient is a whole number, then 4 and 36,435,121.25 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 | 145,740,485 | |
| -1 | 145,740,485 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 73 | 365 | 803 | 4,015 | 36,299 | 181,495 | 399,289 | 1,996,445 | 2,649,827 | 13,249,135 | 29,148,097 | 145,740,485 |
| -1 | -5 | -11 | -55 | -73 | -365 | -803 | -4,015 | -36,299 | -181,495 | -399,289 | -1,996,445 | -2,649,827 | -13,249,135 | -29,148,097 | -145,740,485 |
Here are some more numbers to try:
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