A:
Positive:
1 x 1663145055 x 332629017 x 2375921519 x 875339535 x 475184395 x 1750679133 x 1250485361 x 460705665 x 2500971805 x 921412527 x 6581512635 x 13163
Negative:
-1 x -166314505-5 x -33262901-7 x -23759215-19 x -8753395-35 x -4751843-95 x -1750679-133 x -1250485-361 x -460705-665 x -250097-1805 x -92141-2527 x -65815-12635 x -13163
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 166,314,505, 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 | 166,314,505 | |
| -1 | -166,314,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,314,505.
Example:
1 x 166,314,505 = 166,314,505
and
-1 x -166,314,505 = 166,314,505
Notice both answers equal 166,314,505
With that explanation out of the way, let's continue. Next, we take the number 166,314,505 and divide it by 2:
166,314,505 ÷ 2 = 83,157,252.5
If the quotient is a whole number, then 2 and 83,157,252.5 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 | 166,314,505 | |
| -1 | -166,314,505 |
Now, we try dividing 166,314,505 by 3:
166,314,505 ÷ 3 = 55,438,168.3333
If the quotient is a whole number, then 3 and 55,438,168.3333 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 | 166,314,505 | |
| -1 | -166,314,505 |
Let's try dividing by 4:
166,314,505 ÷ 4 = 41,578,626.25
If the quotient is a whole number, then 4 and 41,578,626.25 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 | 166,314,505 | |
| -1 | 166,314,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 361 | 665 | 1,805 | 2,527 | 12,635 | 13,163 | 65,815 | 92,141 | 250,097 | 460,705 | 1,250,485 | 1,750,679 | 4,751,843 | 8,753,395 | 23,759,215 | 33,262,901 | 166,314,505 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -361 | -665 | -1,805 | -2,527 | -12,635 | -13,163 | -65,815 | -92,141 | -250,097 | -460,705 | -1,250,485 | -1,750,679 | -4,751,843 | -8,753,395 | -23,759,215 | -33,262,901 | -166,314,505 |
Here are some more numbers to try:
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