30 and 60 have an LCM of 60.
60 15 and 4 have no common factors, so the LCM must be at least their product. The number 30 does not introduce any additional factors, so the LCM is 60.
As for example the LCM of 15 and 20 is 60
Since 3, 4, and 5 don't have any common factors, you just multiply them together. The LCM is 60.
The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 3, 9, 36, and 60 is 180.
List the factors of 10 and 12! The only product they share is 60. So the lcm is 60. The lcm is also the least common denominator!
LCM is least common multiple of two or more numbers. LCM of 12 and 15 is 60.
Take the top two first.LCM is the product divided by the GCF55 factors to [5 11]60 factors to [2 2 3 5]common factor is 5, so LCM is 55 * 60 / 5 = 660Now, since 22 factors to [2 11] and both of them are in the above factors, 22 is a factor of 660 as well (22*30), so 660 is the answer. ■
The least common multiple of 4, 5 and 6 is 60.
The best way to do this is to find the LCM of the highest 2 numbers (a) and (b) and then work with the last (c) relative to the LCM of (a) and (b). LCM(a,b) = (ab)/(gcf(a,b)) 12 factors to [2 2 3] 15 factors to [3 5] common factor is [3] LCM(12,15) = (12)(15)/3 = 60 Happily, 10 is a factor of 60, so 60 is the LCM(10,60) and you are done here. 60 is the answer.◄ If you want to work it all the way out... 10 factors to [2 5] 60 factors to [2 2 3 5] common factors are [2 5] LCM(10,60) = (10)(60)/(10) = 60 If you follow the formula, it will always work.
You need at least two numbers to find an LCM.
99 and 101 have an LCM of 9,999.