Least Common Multiple (LCM) of 49 and 170
The least common multiple (LCM) of 49 and 170 is 8330.
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 49 and 170?
First, calculate the GCD of 49 and 170 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 49 ÷ 170 = 0 remainder 49 |
| 2 | 170 ÷ 49 = 3 remainder 23 |
| 3 | 49 ÷ 23 = 2 remainder 3 |
| 4 | 23 ÷ 3 = 7 remainder 2 |
| 5 | 3 ÷ 2 = 1 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 146 and 138 | 10074 |
| 59 and 131 | 7729 |
| 118 and 58 | 3422 |
| 73 and 123 | 8979 |
| 45 and 95 | 855 |