Least Common Multiple (LCM) of 22 and 172
The least common multiple (LCM) of 22 and 172 is 1892.
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 22 and 172?
First, calculate the GCD of 22 and 172 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 22 ÷ 172 = 0 remainder 22 |
| 2 | 172 ÷ 22 = 7 remainder 18 |
| 3 | 22 ÷ 18 = 1 remainder 4 |
| 4 | 18 ÷ 4 = 4 remainder 2 |
| 5 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 81 and 182 | 14742 |
| 45 and 178 | 8010 |
| 120 and 19 | 2280 |
| 13 and 38 | 494 |
| 91 and 80 | 7280 |