Least Common Multiple (LCM) of 140 and 157
The least common multiple (LCM) of 140 and 157 is 21980.
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 140 and 157?
First, calculate the GCD of 140 and 157 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 140 ÷ 157 = 0 remainder 140 |
| 2 | 157 ÷ 140 = 1 remainder 17 |
| 3 | 140 ÷ 17 = 8 remainder 4 |
| 4 | 17 ÷ 4 = 4 remainder 1 |
| 5 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 115 and 81 | 9315 |
| 160 and 148 | 5920 |
| 189 and 115 | 21735 |
| 181 and 174 | 31494 |
| 147 and 133 | 2793 |