Least Common Multiple (LCM) of 142 and 77
The least common multiple (LCM) of 142 and 77 is 10934.
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 142 and 77?
First, calculate the GCD of 142 and 77 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 142 ÷ 77 = 1 remainder 65 |
| 2 | 77 ÷ 65 = 1 remainder 12 |
| 3 | 65 ÷ 12 = 5 remainder 5 |
| 4 | 12 ÷ 5 = 2 remainder 2 |
| 5 | 5 ÷ 2 = 2 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 117 and 51 | 1989 |
| 170 and 171 | 29070 |
| 113 and 191 | 21583 |
| 153 and 92 | 14076 |
| 67 and 12 | 804 |