Least Common Multiple (LCM) of 161 and 140
The least common multiple (LCM) of 161 and 140 is 3220.
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 161 and 140?
First, calculate the GCD of 161 and 140 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 161 ÷ 140 = 1 remainder 21 |
| 2 | 140 ÷ 21 = 6 remainder 14 |
| 3 | 21 ÷ 14 = 1 remainder 7 |
| 4 | 14 ÷ 7 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 119 and 167 | 19873 |
| 103 and 111 | 11433 |
| 56 and 168 | 168 |
| 175 and 93 | 16275 |
| 102 and 59 | 6018 |