Least Common Multiple (LCM) of 79 and 40
The least common multiple (LCM) of 79 and 40 is 3160.
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 79 and 40?
First, calculate the GCD of 79 and 40 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 79 ÷ 40 = 1 remainder 39 |
| 2 | 40 ÷ 39 = 1 remainder 1 |
| 3 | 39 ÷ 1 = 39 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 56 and 180 | 2520 |
| 167 and 151 | 25217 |
| 129 and 89 | 11481 |
| 84 and 77 | 924 |
| 155 and 157 | 24335 |