Least Common Multiple (LCM) of 69 and 98
The least common multiple (LCM) of 69 and 98 is 6762.
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 69 and 98?
First, calculate the GCD of 69 and 98 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 69 ÷ 98 = 0 remainder 69 |
| 2 | 98 ÷ 69 = 1 remainder 29 |
| 3 | 69 ÷ 29 = 2 remainder 11 |
| 4 | 29 ÷ 11 = 2 remainder 7 |
| 5 | 11 ÷ 7 = 1 remainder 4 |
| 6 | 7 ÷ 4 = 1 remainder 3 |
| 7 | 4 ÷ 3 = 1 remainder 1 |
| 8 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 31 and 178 | 5518 |
| 86 and 77 | 6622 |
| 118 and 191 | 22538 |
| 17 and 20 | 340 |
| 78 and 40 | 1560 |