what is the lcm of 12,11,7,5,39,10? ( please answer this! an expert needs to answer it)?
828515
You SHOULD be able to do this for yourself.  Don't feel blown away simply because the result is large!\n\nWith your corrected list: 12,11,7,5,3,9,10, the lcm will be:\n\n12 x 11 x 7 x 5 x (1)* x (3)** x (1)***.\n\nThe REASONS?:\n\n* This is 1, not 3, because 12 already contains a 3.\n** This is 3, not 9, because 12 already contains a 3; so, to get a 9 in the final product, you only need one more 3.\n*** This is 1 because a 2 already exists in the 12, and the 5 needed to give you 10 in the end result has already appeared, as (plain) 5 itself.\n\nSo, to recap, the lcm is 12 x 11 x 7 x 5 x (1)* x (3)** x (1)*** i.e. 12 x 11 x 7 x 5 x 3 = 13860.\n\nIn future, use similar methods, don't just ask others to do it for you.\n\nLive long and prosper.
911275
Quin 5\nSex 6\nSept 7\nOct 8\nNon 9\nDec 10
404449
n!=1*2*3*...*n\nC(n,k) = n! / ( k! * (n-k)! )\nit tells you in hom many different ways you can pick k items out of n. your textbook says why.  \n\na. C(7,4) -direct application, 4 good ones out of 7=10-3\nb. C(7,2)*C(3,2) 2 goods ones, 2 bad ones\nc. C(7,4) + C(7,3)*C(3,1) + C(7,2)*C(3,2) \n all 4 good, or 3 good+ 1 bad, or 2 good+2bad
166071
54 & 81 - GCF is 27 and LCM is 162\n36 & 144 - GCF is 4 and LCM is 144\n128 & 264 - GCF is 8 and LCM is 4224
568943
17\n1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21,31,41,51,61.
541370
Multiplying the denominators of all the fractions would be the easiest method.\n\nHowever, if the numbers are really big and you prefer working with small ones (e.g. if you do not have a calculator), you can first find the lowest common multiple (LCM).
816611
hi,\n  regarding lcm of a set of numbers.....\n\n  the lowest common multiple (lcm) of two whole numbers\n  is the smallest whole number which is a multiple of both.\n\n  consider the numbers 12 and 15-----\n  the multiples of 12 are : 12, 24, 36, 48, 60, 72, 84, ....\n  the multiples of 15 are : 15, 30, 45, 60, 75, 90, ....\n\n  60 is a common multiple (a multiple of both 12 and 15),  \n  and there are no lower common multiples.\n\n  therefore, the lowest common multiple of 12 and 15 is \n  60.\n\n  now try it yourself for 120 and 130.
5045
"HCF of A&B is 9& of B&C is 12"\n\nB is divisible by 36, because it's divisible by both 9 and 12.\nA is divisible by 9, but not by 2.  (If A were divisible by 2, then the HCF of A&B would be at least 18.)\nAnd C is divisible by 12, but not by 9.\n\n\n"LCM of A&C is 216"\n\n216=27*8\nA=27.\n\nOne solution is:  A=27, B=36, and C=24\nSo LCM of A & B is 108.\nBut B can be any value of 36*N, where N is not divisible by 2 or 3.\n\nSo another solution is: A=27, B=180 (36*5), and C=24.\nLCM of A & B is 540.
42679
28:  1, 7\n155:  1, 5\n\ni think
247655
0,1,1,5,7,11,13,13,21,23,27.......
920549
3   7    14 16  25\n11 20  23  2   9\n22  4    6    15 18\n10 13  17  24 1\n19  21  5    8   12
599231
A+A+1/2of A + 1/2of 1/2ofA + 1 = 100\n\n-> 2A + A/2 + A/4 = 99\n\nTaking 4 as the LCM\n\n-> 8A + 2A + A = 99*4= 396\n-> 11A = 396\n-> A = 36\nthanx :)
844425
I think you mean lowest common multiple (LCM) or greatest common factor (GCF).\nExamples:  The LCM of 8 and 12 is 24 because 24 is the smallest number that is divisible by 8 and 12.\nThe GCF of 8 and 12 is 4 because 4 is the largest number that both 8 and 12 are divisible by.
817509
The least common multiple (LCM) of two numbers is the smallest number (not zero) that is a multiple of both.
854222
Those are the right numbers. As you suspected they have too many decimal places, however. To have them correct to 6 decimal places, look at the 7th decimal place. If this is 5 or more, round the 6th decimal up one, otherwise leave it the same and just drop all the numbers after it.\n\nSo for a) the answer would be 1.499975 and for b) it would be 1.499997.
580639
6,643,342,716\n\nno wait, it's 6,643,342,791\nwait, 6,643,342,813\noh, 6,643,342,876\n\nwould you guys cut that out a minute...
868097
-\naside from 1,\n2,3,4,6,12