Q: What are the factor combinations of the number 141,145,566?

 A:
Positive:   1 x 1411455662 x 705727833 x 470485226 x 2352426119 x 742871438 x 371435757 x 2476238114 x 1238119
Negative: -1 x -141145566-2 x -70572783-3 x -47048522-6 x -23524261-19 x -7428714-38 x -3714357-57 x -2476238-114 x -1238119


How do I find the factor combinations of the number 141,145,566?

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 141,145,566, 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.

1 141,145,566
-1 -141,145,566

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 141,145,566.

Example:
1 x 141,145,566 = 141,145,566
and
-1 x -141,145,566 = 141,145,566
Notice both answers equal 141,145,566

With that explanation out of the way, let's continue. Next, we take the number 141,145,566 and divide it by 2:

141,145,566 ÷ 2 = 70,572,783

If the quotient is a whole number, then 2 and 70,572,783 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 70,572,783 141,145,566
-1 -2 -70,572,783 -141,145,566

Now, we try dividing 141,145,566 by 3:

141,145,566 ÷ 3 = 47,048,522

If the quotient is a whole number, then 3 and 47,048,522 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 47,048,522 70,572,783 141,145,566
-1 -2 -3 -47,048,522 -70,572,783 -141,145,566

Let's try dividing by 4:

141,145,566 ÷ 4 = 35,286,391.5

If the quotient is a whole number, then 4 and 35,286,391.5 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 2 3 47,048,522 70,572,783 141,145,566
-1 -2 -3 -47,048,522 -70,572,783 141,145,566
Keep dividing by the next highest number until you cannot divide anymore.

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

12361938571141,238,1192,476,2383,714,3577,428,71423,524,26147,048,52270,572,783141,145,566
-1-2-3-6-19-38-57-114-1,238,119-2,476,238-3,714,357-7,428,714-23,524,261-47,048,522-70,572,783-141,145,566

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