Least Common Multiple (LCM) of 200 and 78
The least common multiple (LCM) of 200 and 78 is 7800.
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 200 and 78?
First, calculate the GCD of 200 and 78 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 200 ÷ 78 = 2 remainder 44 |
| 2 | 78 ÷ 44 = 1 remainder 34 |
| 3 | 44 ÷ 34 = 1 remainder 10 |
| 4 | 34 ÷ 10 = 3 remainder 4 |
| 5 | 10 ÷ 4 = 2 remainder 2 |
| 6 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 21 and 136 | 2856 |
| 164 and 66 | 5412 |
| 79 and 62 | 4898 |
| 102 and 137 | 13974 |
| 173 and 106 | 18338 |