Least Common Multiple (LCM) of 74 and 161
The least common multiple (LCM) of 74 and 161 is 11914.
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 74 and 161?
First, calculate the GCD of 74 and 161 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 74 ÷ 161 = 0 remainder 74 |
| 2 | 161 ÷ 74 = 2 remainder 13 |
| 3 | 74 ÷ 13 = 5 remainder 9 |
| 4 | 13 ÷ 9 = 1 remainder 4 |
| 5 | 9 ÷ 4 = 2 remainder 1 |
| 6 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 132 and 80 | 2640 |
| 175 and 35 | 175 |
| 110 and 109 | 11990 |
| 122 and 48 | 2928 |
| 70 and 131 | 9170 |