Least Common Multiple (LCM) of 168 and 70
The least common multiple (LCM) of 168 and 70 is 840.
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 168 and 70?
First, calculate the GCD of 168 and 70 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 168 ÷ 70 = 2 remainder 28 |
| 2 | 70 ÷ 28 = 2 remainder 14 |
| 3 | 28 ÷ 14 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 184 and 28 | 1288 |
| 176 and 166 | 14608 |
| 83 and 84 | 6972 |
| 43 and 149 | 6407 |
| 142 and 153 | 21726 |