Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 261 and 266 the smallest integer that is 69426 that is divisible by both numbers.
Least Common Multiple (LCM) of 261 and 266 is 69426.
LCM(261,266) = 69426
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 261 and 266. First we will calculate the prime factors of 261 and 266.
Prime Factorization of 261
3 | 261 |
3 | 87 |
29 | 29 |
1 |
Prime factors of 261 are 3,29. Prime factorization of 261 in exponential form is:
261 = 32×291
Prime Factorization of 266
2 | 266 |
7 | 133 |
19 | 19 |
1 |
Prime factors of 266 are 2, 7,19. Prime factorization of 266 in exponential form is:
266 = 21×71×191
Now multiplying the highest exponent prime factors to calculate the LCM of 261 and 266.
LCM(261,266) = 21×32×71×191×291
LCM(261,266) = 69426
Factors of 261
List of positive integer factors of 261 that divides 261 without a remainder.
1, 3, 9, 29, 87, 261
Factors of 266
List of positive integer factors of 266 that divides 266 without a remainder.
1, 2, 7, 14, 19, 38, 133, 266
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 261 and 266, than apply into the LCM equation.
GCF(261,266) = 1
LCM(261,266) = ( 261 × 266) / 1
LCM(261,266) = 69426 / 1
LCM(261,266) = 69426
(i) The LCM of 266 and 261 is associative
LCM of 261 and 266 = LCM of 266 and 261
1. What is the LCM of 261 and 266?
Answer: LCM of 261 and 266 is 69426.
2. What are the Factors of 261?
Answer: Factors of 261 are 1, 3, 9, 29, 87, 261. There are 6 integers that are factors of 261. The greatest factor of 261 is 261.
3. What are the Factors of 266?
Answer: Factors of 266 are 1, 2, 7, 14, 19, 38, 133, 266. There are 8 integers that are factors of 266. The greatest factor of 266 is 266.
4. How to Find the LCM of 261 and 266?
Answer:
Least Common Multiple of 261 and 266 = 69426
Step 1: Find the prime factorization of 261
261 = 3 x 3 x 29
Step 2: Find the prime factorization of 266
266 = 2 x 7 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 69426 = 2 x 3 x 3 x 7 x 19 x 29
Step 4: Therefore, the least common multiple of 261 and 266 is 69426.