Least Common Multiple (LCM) of 70 and 181
The least common multiple (LCM) of 70 and 181 is 12670.
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 181?
First, calculate the GCD of 70 and 181 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 70 ÷ 181 = 0 remainder 70 |
| 2 | 181 ÷ 70 = 2 remainder 41 |
| 3 | 70 ÷ 41 = 1 remainder 29 |
| 4 | 41 ÷ 29 = 1 remainder 12 |
| 5 | 29 ÷ 12 = 2 remainder 5 |
| 6 | 12 ÷ 5 = 2 remainder 2 |
| 7 | 5 ÷ 2 = 2 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 12 and 196 | 588 |
| 91 and 23 | 2093 |
| 181 and 21 | 3801 |
| 43 and 192 | 8256 |
| 143 and 33 | 429 |