Q: What are the factor combinations of the number 1,518,127?

 A:
Positive:   1 x 151812713 x 116779169 x 8983691 x 2197
Negative: -1 x -1518127-13 x -116779-169 x -8983-691 x -2197


How do I find the factor combinations of the number 1,518,127?

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 1,518,127, 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 1,518,127
-1 -1,518,127

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 1,518,127.

Example:
1 x 1,518,127 = 1,518,127
and
-1 x -1,518,127 = 1,518,127
Notice both answers equal 1,518,127

With that explanation out of the way, let's continue. Next, we take the number 1,518,127 and divide it by 2:

1,518,127 ÷ 2 = 759,063.5

If the quotient is a whole number, then 2 and 759,063.5 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 1,518,127
-1 -1,518,127

Now, we try dividing 1,518,127 by 3:

1,518,127 ÷ 3 = 506,042.3333

If the quotient is a whole number, then 3 and 506,042.3333 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 1,518,127
-1 -1,518,127

Let's try dividing by 4:

1,518,127 ÷ 4 = 379,531.75

If the quotient is a whole number, then 4 and 379,531.75 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 1,518,127
-1 1,518,127
Keep dividing by the next highest number until you cannot divide anymore.

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

1131696912,1978,983116,7791,518,127
-1-13-169-691-2,197-8,983-116,779-1,518,127

More Examples

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