Q: What are the factor combinations of the number 156,988,055?

 A:
Positive:   1 x 1569880555 x 313976117 x 2242686535 x 448537343 x 3650885215 x 730177301 x 5215551505 x 104311
Negative: -1 x -156988055-5 x -31397611-7 x -22426865-35 x -4485373-43 x -3650885-215 x -730177-301 x -521555-1505 x -104311


How do I find the factor combinations of the number 156,988,055?

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 156,988,055, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

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.

1 156,988,055
-1 -156,988,055

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,988,055.

Example:
1 x 156,988,055 = 156,988,055
and
-1 x -156,988,055 = 156,988,055
Notice both answers equal 156,988,055

With that explanation out of the way, let's continue. Next, we take the number 156,988,055 and divide it by 2:

156,988,055 ÷ 2 = 78,494,027.5

If the quotient is a whole number, then 2 and 78,494,027.5 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:

1 156,988,055
-1 -156,988,055

Now, we try dividing 156,988,055 by 3:

156,988,055 ÷ 3 = 52,329,351.6667

If the quotient is a whole number, then 3 and 52,329,351.6667 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:

1 156,988,055
-1 -156,988,055

Let's try dividing by 4:

156,988,055 ÷ 4 = 39,247,013.75

If the quotient is a whole number, then 4 and 39,247,013.75 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:

1 156,988,055
-1 156,988,055
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

15735432153011,505104,311521,555730,1773,650,8854,485,37322,426,86531,397,611156,988,055
-1-5-7-35-43-215-301-1,505-104,311-521,555-730,177-3,650,885-4,485,373-22,426,865-31,397,611-156,988,055

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