Least Common Multiple (LCM) of 120 and 178
The least common multiple (LCM) of 120 and 178 is 10680.
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 120 and 178?
First, calculate the GCD of 120 and 178 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 120 ÷ 178 = 0 remainder 120 |
| 2 | 178 ÷ 120 = 1 remainder 58 |
| 3 | 120 ÷ 58 = 2 remainder 4 |
| 4 | 58 ÷ 4 = 14 remainder 2 |
| 5 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 12 and 156 | 156 |
| 98 and 131 | 12838 |
| 17 and 116 | 1972 |
| 109 and 40 | 4360 |
| 139 and 156 | 21684 |