Q: What are the factor combinations of the number 141,245?

 A:
Positive:   1 x 1412455 x 2824913 x 1086541 x 344553 x 266565 x 2173205 x 689265 x 533
Negative: -1 x -141245-5 x -28249-13 x -10865-41 x -3445-53 x -2665-65 x -2173-205 x -689-265 x -533


How do I find the factor combinations of the number 141,245?

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 141,245, 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.

1 141,245
-1 -141,245

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 141,245.

Example:
1 x 141,245 = 141,245
and
-1 x -141,245 = 141,245
Notice both answers equal 141,245

With that explanation out of the way, let's continue. Next, we take the number 141,245 and divide it by 2:

141,245 ÷ 2 = 70,622.5

If the quotient is a whole number, then 2 and 70,622.5 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:

1 141,245
-1 -141,245

Now, we try dividing 141,245 by 3:

141,245 ÷ 3 = 47,081.6667

If the quotient is a whole number, then 3 and 47,081.6667 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:

1 141,245
-1 -141,245

Let's try dividing by 4:

141,245 ÷ 4 = 35,311.25

If the quotient is a whole number, then 4 and 35,311.25 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:

1 141,245
-1 141,245
Keep dividing by the next highest number until you cannot divide anymore.

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

15134153652052655336892,1732,6653,44510,86528,249141,245
-1-5-13-41-53-65-205-265-533-689-2,173-2,665-3,445-10,865-28,249-141,245

More Examples

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