Least Common Multiple (LCM) of 49 and 64
The least common multiple (LCM) of 49 and 64 is 3136.
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 64?
First, calculate the GCD of 49 and 64 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 49 ÷ 64 = 0 remainder 49 |
| 2 | 64 ÷ 49 = 1 remainder 15 |
| 3 | 49 ÷ 15 = 3 remainder 4 |
| 4 | 15 ÷ 4 = 3 remainder 3 |
| 5 | 4 ÷ 3 = 1 remainder 1 |
| 6 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 111 and 18 | 666 |
| 168 and 173 | 29064 |
| 141 and 70 | 9870 |
| 129 and 169 | 21801 |
| 182 and 44 | 4004 |