Least Common Multiple (LCM) of 87 and 156
The least common multiple (LCM) of 87 and 156 is 4524.
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 87 and 156?
First, calculate the GCD of 87 and 156 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 156 = 0 remainder 87 |
| 2 | 156 ÷ 87 = 1 remainder 69 |
| 3 | 87 ÷ 69 = 1 remainder 18 |
| 4 | 69 ÷ 18 = 3 remainder 15 |
| 5 | 18 ÷ 15 = 1 remainder 3 |
| 6 | 15 ÷ 3 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 158 and 70 | 5530 |
| 129 and 98 | 12642 |
| 71 and 189 | 13419 |
| 92 and 23 | 92 |
| 170 and 26 | 2210 |