Least common multiple calculator
LCM(12, 2) = 22×3 = 12
12 = 22×3
2 = 2
LCM = 22×3 = 12
12 / 12 = 1
12 / 2 = 6
What is LCM?
The least common multiple (also called the lowest common multiple or smallest common multiple or LCM) of one or more integer numbers is the smallest positive integer divisible by all these numbers.
One way to find the least common multiple of two numbers is first to list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor by the greatest number of times it occurs.
For three or more numbers, proceed similarly, multiple the largest found powers of prime factors of given numbers.
Questions and word problems to LCM
- Three buses
Three public transport buses depart together from the bus station in the morning. The first bus returns to the station after 18 minutes, the second after 12 minutes, and a third after 24 minutes. How long will again together at the station? Please express - Dressmaker
The dressmaker left a piece of canvas shorter than 5 meters. She is deciding whether it sew a skirt or dress. The canvas was exactly as much as they consumed had cut up her skirt to 120 cm, or 180 centimeters. What a piece of canvas left her? - LCM of two number
Find the smallest multiple of 63 and 147 - Different 6975
Three different bus lines, 80, 81, and 82, depart from the final station at 5h 20min. Line 80 departs every 30 minutes, line 81 every 20 minutes, and line 82 every 40 minutes. What time will they leave again?
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