Least Common Multiple (LCM) of 13 and 97
The least common multiple (LCM) of 13 and 97 is 1261.
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 13 and 97?
First, calculate the GCD of 13 and 97 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 13 ÷ 97 = 0 remainder 13 |
| 2 | 97 ÷ 13 = 7 remainder 6 |
| 3 | 13 ÷ 6 = 2 remainder 1 |
| 4 | 6 ÷ 1 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 188 and 55 | 10340 |
| 75 and 71 | 5325 |
| 22 and 137 | 3014 |
| 144 and 95 | 13680 |
| 100 and 128 | 3200 |