Least Common Multiple (LCM) of 55 and 97
The least common multiple (LCM) of 55 and 97 is 5335.
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 55 and 97?
First, calculate the GCD of 55 and 97 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 55 ÷ 97 = 0 remainder 55 |
| 2 | 97 ÷ 55 = 1 remainder 42 |
| 3 | 55 ÷ 42 = 1 remainder 13 |
| 4 | 42 ÷ 13 = 3 remainder 3 |
| 5 | 13 ÷ 3 = 4 remainder 1 |
| 6 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 143 and 120 | 17160 |
| 45 and 91 | 4095 |
| 178 and 11 | 1958 |
| 94 and 191 | 17954 |
| 107 and 172 | 18404 |