Q: What are the factor combinations of the number 76,370,418?

 A:
Positive:   1 x 763704182 x 381852093 x 254568066 x 127284039 x 848560218 x 424280127 x 282853454 x 1414267
Negative: -1 x -76370418-2 x -38185209-3 x -25456806-6 x -12728403-9 x -8485602-18 x -4242801-27 x -2828534-54 x -1414267


How do I find the factor combinations of the number 76,370,418?

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 76,370,418, 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 76,370,418
-1 -76,370,418

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 76,370,418.

Example:
1 x 76,370,418 = 76,370,418
and
-1 x -76,370,418 = 76,370,418
Notice both answers equal 76,370,418

With that explanation out of the way, let's continue. Next, we take the number 76,370,418 and divide it by 2:

76,370,418 ÷ 2 = 38,185,209

If the quotient is a whole number, then 2 and 38,185,209 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 38,185,209 76,370,418
-1 -2 -38,185,209 -76,370,418

Now, we try dividing 76,370,418 by 3:

76,370,418 ÷ 3 = 25,456,806

If the quotient is a whole number, then 3 and 25,456,806 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 25,456,806 38,185,209 76,370,418
-1 -2 -3 -25,456,806 -38,185,209 -76,370,418

Let's try dividing by 4:

76,370,418 ÷ 4 = 19,092,604.5

If the quotient is a whole number, then 4 and 19,092,604.5 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 25,456,806 38,185,209 76,370,418
-1 -2 -3 -25,456,806 -38,185,209 76,370,418
Keep dividing by the next highest number until you cannot divide anymore.

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

123691827541,414,2672,828,5344,242,8018,485,60212,728,40325,456,80638,185,20976,370,418
-1-2-3-6-9-18-27-54-1,414,267-2,828,534-4,242,801-8,485,602-12,728,403-25,456,806-38,185,209-76,370,418

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