Least Common Multiple (LCM) of 169 and 64
The least common multiple (LCM) of 169 and 64 is 10816.
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 169 and 64?
First, calculate the GCD of 169 and 64 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 169 ÷ 64 = 2 remainder 41 |
| 2 | 64 ÷ 41 = 1 remainder 23 |
| 3 | 41 ÷ 23 = 1 remainder 18 |
| 4 | 23 ÷ 18 = 1 remainder 5 |
| 5 | 18 ÷ 5 = 3 remainder 3 |
| 6 | 5 ÷ 3 = 1 remainder 2 |
| 7 | 3 ÷ 2 = 1 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 155 and 22 | 3410 |
| 72 and 15 | 360 |
| 25 and 159 | 3975 |
| 91 and 173 | 15743 |
| 14 and 92 | 644 |