Least Common Multiple (LCM) of 170 and 117
The least common multiple (LCM) of 170 and 117 is 19890.
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 170 and 117?
First, calculate the GCD of 170 and 117 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 170 ÷ 117 = 1 remainder 53 |
| 2 | 117 ÷ 53 = 2 remainder 11 |
| 3 | 53 ÷ 11 = 4 remainder 9 |
| 4 | 11 ÷ 9 = 1 remainder 2 |
| 5 | 9 ÷ 2 = 4 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 31 and 154 | 4774 |
| 119 and 109 | 12971 |
| 160 and 189 | 30240 |
| 53 and 145 | 7685 |
| 34 and 171 | 5814 |