Least Common Multiple (LCM) of 86 and 120
The least common multiple (LCM) of 86 and 120 is 5160.
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 86 and 120?
First, calculate the GCD of 86 and 120 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 86 ÷ 120 = 0 remainder 86 |
| 2 | 120 ÷ 86 = 1 remainder 34 |
| 3 | 86 ÷ 34 = 2 remainder 18 |
| 4 | 34 ÷ 18 = 1 remainder 16 |
| 5 | 18 ÷ 16 = 1 remainder 2 |
| 6 | 16 ÷ 2 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 24 and 171 | 1368 |
| 158 and 191 | 30178 |
| 90 and 31 | 2790 |
| 69 and 116 | 8004 |
| 184 and 106 | 9752 |