Least Common Multiple (LCM) of 98 and 156
The least common multiple (LCM) of 98 and 156 is 7644.
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 98 and 156?
First, calculate the GCD of 98 and 156 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 98 ÷ 156 = 0 remainder 98 |
| 2 | 156 ÷ 98 = 1 remainder 58 |
| 3 | 98 ÷ 58 = 1 remainder 40 |
| 4 | 58 ÷ 40 = 1 remainder 18 |
| 5 | 40 ÷ 18 = 2 remainder 4 |
| 6 | 18 ÷ 4 = 4 remainder 2 |
| 7 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 70 and 55 | 770 |
| 124 and 139 | 17236 |
| 115 and 197 | 22655 |
| 182 and 20 | 1820 |
| 155 and 136 | 21080 |