Least Common Multiple (LCM) of 72 and 98
The least common multiple (LCM) of 72 and 98 is 3528.
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 72 and 98?
First, calculate the GCD of 72 and 98 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 72 ÷ 98 = 0 remainder 72 |
| 2 | 98 ÷ 72 = 1 remainder 26 |
| 3 | 72 ÷ 26 = 2 remainder 20 |
| 4 | 26 ÷ 20 = 1 remainder 6 |
| 5 | 20 ÷ 6 = 3 remainder 2 |
| 6 | 6 ÷ 2 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 135 and 165 | 1485 |
| 157 and 111 | 17427 |
| 169 and 88 | 14872 |
| 53 and 75 | 3975 |
| 194 and 44 | 4268 |