Q: What are the factor combinations of the number 72,658,428?

 A:
Positive:   1 x 726584282 x 363292143 x 242194764 x 181646076 x 1210973812 x 605486947 x 154592494 x 772962141 x 515308188 x 386481282 x 257654564 x 1288272209 x 328922741 x 265084418 x 164465482 x 132546627 x 109648223 x 8836
Negative: -1 x -72658428-2 x -36329214-3 x -24219476-4 x -18164607-6 x -12109738-12 x -6054869-47 x -1545924-94 x -772962-141 x -515308-188 x -386481-282 x -257654-564 x -128827-2209 x -32892-2741 x -26508-4418 x -16446-5482 x -13254-6627 x -10964-8223 x -8836


How do I find the factor combinations of the number 72,658,428?

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 72,658,428, 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 72,658,428
-1 -72,658,428

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 72,658,428.

Example:
1 x 72,658,428 = 72,658,428
and
-1 x -72,658,428 = 72,658,428
Notice both answers equal 72,658,428

With that explanation out of the way, let's continue. Next, we take the number 72,658,428 and divide it by 2:

72,658,428 ÷ 2 = 36,329,214

If the quotient is a whole number, then 2 and 36,329,214 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 36,329,214 72,658,428
-1 -2 -36,329,214 -72,658,428

Now, we try dividing 72,658,428 by 3:

72,658,428 ÷ 3 = 24,219,476

If the quotient is a whole number, then 3 and 24,219,476 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 24,219,476 36,329,214 72,658,428
-1 -2 -3 -24,219,476 -36,329,214 -72,658,428

Let's try dividing by 4:

72,658,428 ÷ 4 = 18,164,607

If the quotient is a whole number, then 4 and 18,164,607 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 4 18,164,607 24,219,476 36,329,214 72,658,428
-1 -2 -3 -4 -18,164,607 -24,219,476 -36,329,214 72,658,428
Keep dividing by the next highest number until you cannot divide anymore.

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

123461247941411882825642,2092,7414,4185,4826,6278,2238,83610,96413,25416,44626,50832,892128,827257,654386,481515,308772,9621,545,9246,054,86912,109,73818,164,60724,219,47636,329,21472,658,428
-1-2-3-4-6-12-47-94-141-188-282-564-2,209-2,741-4,418-5,482-6,627-8,223-8,836-10,964-13,254-16,446-26,508-32,892-128,827-257,654-386,481-515,308-772,962-1,545,924-6,054,869-12,109,738-18,164,607-24,219,476-36,329,214-72,658,428

More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 72,658,428:


Ask a Question