Least Common Multiple (LCM) of 172 and 101
The least common multiple (LCM) of 172 and 101 is 17372.
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 172 and 101?
First, calculate the GCD of 172 and 101 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 172 ÷ 101 = 1 remainder 71 |
| 2 | 101 ÷ 71 = 1 remainder 30 |
| 3 | 71 ÷ 30 = 2 remainder 11 |
| 4 | 30 ÷ 11 = 2 remainder 8 |
| 5 | 11 ÷ 8 = 1 remainder 3 |
| 6 | 8 ÷ 3 = 2 remainder 2 |
| 7 | 3 ÷ 2 = 1 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 79 and 173 | 13667 |
| 43 and 95 | 4085 |
| 80 and 43 | 3440 |
| 191 and 151 | 28841 |
| 165 and 35 | 1155 |