Least Common Multiple (LCM) of 70 and 89
The least common multiple (LCM) of 70 and 89 is 6230.
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 70 and 89?
First, calculate the GCD of 70 and 89 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 70 ÷ 89 = 0 remainder 70 |
| 2 | 89 ÷ 70 = 1 remainder 19 |
| 3 | 70 ÷ 19 = 3 remainder 13 |
| 4 | 19 ÷ 13 = 1 remainder 6 |
| 5 | 13 ÷ 6 = 2 remainder 1 |
| 6 | 6 ÷ 1 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 22 and 21 | 462 |
| 193 and 145 | 27985 |
| 57 and 12 | 228 |
| 150 and 171 | 8550 |
| 96 and 144 | 288 |