Least Common Multiple (LCM) of 30 and 196
The least common multiple (LCM) of 30 and 196 is 2940.
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 30 and 196?
First, calculate the GCD of 30 and 196 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 30 ÷ 196 = 0 remainder 30 |
| 2 | 196 ÷ 30 = 6 remainder 16 |
| 3 | 30 ÷ 16 = 1 remainder 14 |
| 4 | 16 ÷ 14 = 1 remainder 2 |
| 5 | 14 ÷ 2 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 42 and 79 | 3318 |
| 79 and 128 | 10112 |
| 169 and 103 | 17407 |
| 176 and 101 | 17776 |
| 41 and 15 | 615 |