Least Common Multiple (LCM) of 79 and 122
The least common multiple (LCM) of 79 and 122 is 9638.
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 79 and 122?
First, calculate the GCD of 79 and 122 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 79 ÷ 122 = 0 remainder 79 |
| 2 | 122 ÷ 79 = 1 remainder 43 |
| 3 | 79 ÷ 43 = 1 remainder 36 |
| 4 | 43 ÷ 36 = 1 remainder 7 |
| 5 | 36 ÷ 7 = 5 remainder 1 |
| 6 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 21 and 164 | 3444 |
| 105 and 32 | 3360 |
| 102 and 146 | 7446 |
| 173 and 169 | 29237 |
| 99 and 91 | 9009 |