Least Common Multiple (LCM) of 105 and 60
The least common multiple (LCM) of 105 and 60 is 420.
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 105 and 60?
First, calculate the GCD of 105 and 60 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 105 ÷ 60 = 1 remainder 45 |
| 2 | 60 ÷ 45 = 1 remainder 15 |
| 3 | 45 ÷ 15 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 141 and 73 | 10293 |
| 74 and 123 | 9102 |
| 176 and 74 | 6512 |
| 152 and 78 | 5928 |
| 130 and 174 | 11310 |