Least Common Multiple (LCM) of 49 and 155
The least common multiple (LCM) of 49 and 155 is 7595.
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 155?
First, calculate the GCD of 49 and 155 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 49 ÷ 155 = 0 remainder 49 |
| 2 | 155 ÷ 49 = 3 remainder 8 |
| 3 | 49 ÷ 8 = 6 remainder 1 |
| 4 | 8 ÷ 1 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 132 and 89 | 11748 |
| 153 and 99 | 1683 |
| 128 and 10 | 640 |
| 32 and 63 | 2016 |
| 21 and 43 | 903 |