A:
Positive:
1 x 1455002155 x 291000437 x 2078574535 x 415714967 x 2171645335 x 434329469 x 3102352345 x 62047
Negative:
-1 x -145500215-5 x -29100043-7 x -20785745-35 x -4157149-67 x -2171645-335 x -434329-469 x -310235-2345 x -62047
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 145,500,215, 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 | 145,500,215 | |
| -1 | -145,500,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 145,500,215.
Example:
1 x 145,500,215 = 145,500,215
and
-1 x -145,500,215 = 145,500,215
Notice both answers equal 145,500,215
With that explanation out of the way, let's continue. Next, we take the number 145,500,215 and divide it by 2:
145,500,215 ÷ 2 = 72,750,107.5
If the quotient is a whole number, then 2 and 72,750,107.5 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 | 145,500,215 | |
| -1 | -145,500,215 |
Now, we try dividing 145,500,215 by 3:
145,500,215 ÷ 3 = 48,500,071.6667
If the quotient is a whole number, then 3 and 48,500,071.6667 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 | 145,500,215 | |
| -1 | -145,500,215 |
Let's try dividing by 4:
145,500,215 ÷ 4 = 36,375,053.75
If the quotient is a whole number, then 4 and 36,375,053.75 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 | 145,500,215 | |
| -1 | 145,500,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 67 | 335 | 469 | 2,345 | 62,047 | 310,235 | 434,329 | 2,171,645 | 4,157,149 | 20,785,745 | 29,100,043 | 145,500,215 |
| -1 | -5 | -7 | -35 | -67 | -335 | -469 | -2,345 | -62,047 | -310,235 | -434,329 | -2,171,645 | -4,157,149 | -20,785,745 | -29,100,043 | -145,500,215 |
Here are some more numbers to try:
Try the factor calculator