A:
Positive:
1 x 1618926355 x 3237852719 x 852066543 x 376494595 x 1704133215 x 752989817 x 1981554085 x 39631
Negative:
-1 x -161892635-5 x -32378527-19 x -8520665-43 x -3764945-95 x -1704133-215 x -752989-817 x -198155-4085 x -39631
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 161,892,635, 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 | 161,892,635 | |
| -1 | -161,892,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 161,892,635.
Example:
1 x 161,892,635 = 161,892,635
and
-1 x -161,892,635 = 161,892,635
Notice both answers equal 161,892,635
With that explanation out of the way, let's continue. Next, we take the number 161,892,635 and divide it by 2:
161,892,635 ÷ 2 = 80,946,317.5
If the quotient is a whole number, then 2 and 80,946,317.5 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 | 161,892,635 | |
| -1 | -161,892,635 |
Now, we try dividing 161,892,635 by 3:
161,892,635 ÷ 3 = 53,964,211.6667
If the quotient is a whole number, then 3 and 53,964,211.6667 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 | 161,892,635 | |
| -1 | -161,892,635 |
Let's try dividing by 4:
161,892,635 ÷ 4 = 40,473,158.75
If the quotient is a whole number, then 4 and 40,473,158.75 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 | 161,892,635 | |
| -1 | 161,892,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 43 | 95 | 215 | 817 | 4,085 | 39,631 | 198,155 | 752,989 | 1,704,133 | 3,764,945 | 8,520,665 | 32,378,527 | 161,892,635 |
| -1 | -5 | -19 | -43 | -95 | -215 | -817 | -4,085 | -39,631 | -198,155 | -752,989 | -1,704,133 | -3,764,945 | -8,520,665 | -32,378,527 | -161,892,635 |
Here are some more numbers to try:
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