Least Common Multiple (LCM) of 70 and 153
The least common multiple (LCM) of 70 and 153 is 10710.
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 153?
First, calculate the GCD of 70 and 153 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 70 ÷ 153 = 0 remainder 70 |
| 2 | 153 ÷ 70 = 2 remainder 13 |
| 3 | 70 ÷ 13 = 5 remainder 5 |
| 4 | 13 ÷ 5 = 2 remainder 3 |
| 5 | 5 ÷ 3 = 1 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 40 and 155 | 1240 |
| 43 and 165 | 7095 |
| 58 and 146 | 4234 |
| 156 and 85 | 13260 |
| 154 and 189 | 4158 |