Q: What are the factor combinations of the number 376,421,780?

 A:
Positive:   1 x 3764217802 x 1882108904 x 941054455 x 752843567 x 5377454010 x 3764217814 x 2688727020 x 1882108928 x 1344363535 x 1075490870 x 5377454140 x 2688727487 x 772940974 x 3864701948 x 1932352435 x 1545883409 x 1104204870 x 772945521 x 681806818 x 552109740 x 3864711042 x 3409013636 x 2760517045 x 22084
Negative: -1 x -376421780-2 x -188210890-4 x -94105445-5 x -75284356-7 x -53774540-10 x -37642178-14 x -26887270-20 x -18821089-28 x -13443635-35 x -10754908-70 x -5377454-140 x -2688727-487 x -772940-974 x -386470-1948 x -193235-2435 x -154588-3409 x -110420-4870 x -77294-5521 x -68180-6818 x -55210-9740 x -38647-11042 x -34090-13636 x -27605-17045 x -22084


How do I find the factor combinations of the number 376,421,780?

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 376,421,780, 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.

1 376,421,780
-1 -376,421,780

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 376,421,780.

Example:
1 x 376,421,780 = 376,421,780
and
-1 x -376,421,780 = 376,421,780
Notice both answers equal 376,421,780

With that explanation out of the way, let's continue. Next, we take the number 376,421,780 and divide it by 2:

376,421,780 ÷ 2 = 188,210,890

If the quotient is a whole number, then 2 and 188,210,890 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 2 188,210,890 376,421,780
-1 -2 -188,210,890 -376,421,780

Now, we try dividing 376,421,780 by 3:

376,421,780 ÷ 3 = 125,473,926.6667

If the quotient is a whole number, then 3 and 125,473,926.6667 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 2 188,210,890 376,421,780
-1 -2 -188,210,890 -376,421,780

Let's try dividing by 4:

376,421,780 ÷ 4 = 94,105,445

If the quotient is a whole number, then 4 and 94,105,445 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 4 94,105,445 188,210,890 376,421,780
-1 -2 -4 -94,105,445 -188,210,890 376,421,780
Keep dividing by the next highest number until you cannot divide anymore.

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

124571014202835701404879741,9482,4353,4094,8705,5216,8189,74011,04213,63617,04522,08427,60534,09038,64755,21068,18077,294110,420154,588193,235386,470772,9402,688,7275,377,45410,754,90813,443,63518,821,08926,887,27037,642,17853,774,54075,284,35694,105,445188,210,890376,421,780
-1-2-4-5-7-10-14-20-28-35-70-140-487-974-1,948-2,435-3,409-4,870-5,521-6,818-9,740-11,042-13,636-17,045-22,084-27,605-34,090-38,647-55,210-68,180-77,294-110,420-154,588-193,235-386,470-772,940-2,688,727-5,377,454-10,754,908-13,443,635-18,821,089-26,887,270-37,642,178-53,774,540-75,284,356-94,105,445-188,210,890-376,421,780

More Examples

Here are some more numbers to try:

376,421,778376,421,779376,421,781376,421,782
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