Least Common Multiple (LCM) of 84 and 100
The least common multiple (LCM) of 84 and 100 is 2100.
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 84 and 100?
First, calculate the GCD of 84 and 100 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 84 ÷ 100 = 0 remainder 84 |
| 2 | 100 ÷ 84 = 1 remainder 16 |
| 3 | 84 ÷ 16 = 5 remainder 4 |
| 4 | 16 ÷ 4 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 163 and 154 | 25102 |
| 162 and 35 | 5670 |
| 140 and 159 | 22260 |
| 68 and 16 | 272 |
| 143 and 75 | 10725 |