
Least Common Multiple (LCM) of 38 and 71
The least common multiple (LCM) of 38 and 71 is 2698.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 38 and 71?
First, calculate the GCD of 38 and 71 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
Step | Calculation |
---|---|
1 | 38 ÷ 71 = 0 remainder 38 |
2 | 71 ÷ 38 = 1 remainder 33 |
3 | 38 ÷ 33 = 1 remainder 5 |
4 | 33 ÷ 5 = 6 remainder 3 |
5 | 5 ÷ 3 = 1 remainder 2 |
6 | 3 ÷ 2 = 1 remainder 1 |
7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
Numbers | LCM |
---|---|
172 and 200 | 8600 |
57 and 58 | 3306 |
156 and 155 | 24180 |
146 and 78 | 5694 |
46 and 186 | 4278 |