Q: What are the factor combinations of the number 310,034,780?

 A:
Positive:   1 x 3100347802 x 1550173904 x 775086955 x 6200695610 x 3100347811 x 2818498017 x 1823734019 x 1631762020 x 1550173922 x 1409249034 x 911867038 x 815881044 x 704624555 x 563699668 x 455933576 x 407940585 x 364746895 x 3263524110 x 2818498170 x 1823734187 x 1657940190 x 1631762209 x 1483420220 x 1409249323 x 959860340 x 911867374 x 828970380 x 815881418 x 741710646 x 479930748 x 414485836 x 370855935 x 3315881045 x 2966841292 x 2399651615 x 1919721870 x 1657942090 x 1483423230 x 959863553 x 872603740 x 828974180 x 741714363 x 710606460 x 479937106 x 436308726 x 3553014212 x 2181517452 x 17765
Negative: -1 x -310034780-2 x -155017390-4 x -77508695-5 x -62006956-10 x -31003478-11 x -28184980-17 x -18237340-19 x -16317620-20 x -15501739-22 x -14092490-34 x -9118670-38 x -8158810-44 x -7046245-55 x -5636996-68 x -4559335-76 x -4079405-85 x -3647468-95 x -3263524-110 x -2818498-170 x -1823734-187 x -1657940-190 x -1631762-209 x -1483420-220 x -1409249-323 x -959860-340 x -911867-374 x -828970-380 x -815881-418 x -741710-646 x -479930-748 x -414485-836 x -370855-935 x -331588-1045 x -296684-1292 x -239965-1615 x -191972-1870 x -165794-2090 x -148342-3230 x -95986-3553 x -87260-3740 x -82897-4180 x -74171-4363 x -71060-6460 x -47993-7106 x -43630-8726 x -35530-14212 x -21815-17452 x -17765


How do I find the factor combinations of the number 310,034,780?

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 310,034,780, 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.

1 310,034,780
-1 -310,034,780

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 310,034,780.

Example:
1 x 310,034,780 = 310,034,780
and
-1 x -310,034,780 = 310,034,780
Notice both answers equal 310,034,780

With that explanation out of the way, let's continue. Next, we take the number 310,034,780 and divide it by 2:

310,034,780 ÷ 2 = 155,017,390

If the quotient is a whole number, then 2 and 155,017,390 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 2 155,017,390 310,034,780
-1 -2 -155,017,390 -310,034,780

Now, we try dividing 310,034,780 by 3:

310,034,780 ÷ 3 = 103,344,926.6667

If the quotient is a whole number, then 3 and 103,344,926.6667 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 2 155,017,390 310,034,780
-1 -2 -155,017,390 -310,034,780

Let's try dividing by 4:

310,034,780 ÷ 4 = 77,508,695

If the quotient is a whole number, then 4 and 77,508,695 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 77,508,695 155,017,390 310,034,780
-1 -2 -4 -77,508,695 -155,017,390 310,034,780
Keep dividing by the next highest number until you cannot divide anymore.

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

124510111719202234384455687685951101701871902092203233403743804186467488369351,0451,2921,6151,8702,0903,2303,5533,7404,1804,3636,4607,1068,72614,21217,45217,76521,81535,53043,63047,99371,06074,17182,89787,26095,986148,342165,794191,972239,965296,684331,588370,855414,485479,930741,710815,881828,970911,867959,8601,409,2491,483,4201,631,7621,657,9401,823,7342,818,4983,263,5243,647,4684,079,4054,559,3355,636,9967,046,2458,158,8109,118,67014,092,49015,501,73916,317,62018,237,34028,184,98031,003,47862,006,95677,508,695155,017,390310,034,780
-1-2-4-5-10-11-17-19-20-22-34-38-44-55-68-76-85-95-110-170-187-190-209-220-323-340-374-380-418-646-748-836-935-1,045-1,292-1,615-1,870-2,090-3,230-3,553-3,740-4,180-4,363-6,460-7,106-8,726-14,212-17,452-17,765-21,815-35,530-43,630-47,993-71,060-74,171-82,897-87,260-95,986-148,342-165,794-191,972-239,965-296,684-331,588-370,855-414,485-479,930-741,710-815,881-828,970-911,867-959,860-1,409,249-1,483,420-1,631,762-1,657,940-1,823,734-2,818,498-3,263,524-3,647,468-4,079,405-4,559,335-5,636,996-7,046,245-8,158,810-9,118,670-14,092,490-15,501,739-16,317,620-18,237,340-28,184,980-31,003,478-62,006,956-77,508,695-155,017,390-310,034,780

More Examples

Here are some more numbers to try:

310,034,778310,034,779310,034,781310,034,782
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