Least Common Multiple (LCM) of 49 and 168
The least common multiple (LCM) of 49 and 168 is 1176.
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 49 and 168?
First, calculate the GCD of 49 and 168 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 49 ÷ 168 = 0 remainder 49 |
| 2 | 168 ÷ 49 = 3 remainder 21 |
| 3 | 49 ÷ 21 = 2 remainder 7 |
| 4 | 21 ÷ 7 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 128 and 137 | 17536 |
| 120 and 59 | 7080 |
| 21 and 115 | 2415 |
| 127 and 32 | 4064 |
| 164 and 103 | 16892 |