Least Common Multiple (LCM) of 153 and 13
The least common multiple (LCM) of 153 and 13 is 1989.
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 153 and 13?
First, calculate the GCD of 153 and 13 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 153 ÷ 13 = 11 remainder 10 |
| 2 | 13 ÷ 10 = 1 remainder 3 |
| 3 | 10 ÷ 3 = 3 remainder 1 |
| 4 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 55 and 70 | 770 |
| 73 and 26 | 1898 |
| 103 and 66 | 6798 |
| 197 and 179 | 35263 |
| 55 and 180 | 1980 |