Least Common Multiple (LCM) of 30 and 35
The least common multiple (LCM) of 30 and 35 is 210.
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 35?
First, calculate the GCD of 30 and 35 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 30 ÷ 35 = 0 remainder 30 |
| 2 | 35 ÷ 30 = 1 remainder 5 |
| 3 | 30 ÷ 5 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 150 and 145 | 4350 |
| 30 and 124 | 1860 |
| 47 and 58 | 2726 |
| 25 and 105 | 525 |
| 89 and 79 | 7031 |