Least Common Multiple (LCM) of 79 and 98
The least common multiple (LCM) of 79 and 98 is 7742.
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 79 and 98?
First, calculate the GCD of 79 and 98 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 79 ÷ 98 = 0 remainder 79 |
| 2 | 98 ÷ 79 = 1 remainder 19 |
| 3 | 79 ÷ 19 = 4 remainder 3 |
| 4 | 19 ÷ 3 = 6 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 81 and 161 | 13041 |
| 164 and 72 | 2952 |
| 77 and 61 | 4697 |
| 149 and 162 | 24138 |
| 200 and 189 | 37800 |