Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2 and 13 the smallest integer that is 26 that is divisible by both numbers.
Least Common Multiple (LCM) of 2 and 13 is 26.
LCM(2,13) = 26
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 2 and 13. First we will calculate the prime factors of 2 and 13.
Prime Factorization of 2
2 | 2 |
1 |
Prime factors of 2 are 2. Prime factorization of 2 in exponential form is:
2 = 21
Prime Factorization of 13
13 | 13 |
1 |
Prime factors of 13 are 13. Prime factorization of 13 in exponential form is:
13 = 131
Now multiplying the highest exponent prime factors to calculate the LCM of 2 and 13.
LCM(2,13) = 21×131
LCM(2,13) = 26
Factors of 2
List of positive integer factors of 2 that divides 2 without a remainder.
1, 2
Factors of 13
List of positive integer factors of 13 that divides 13 without a remainder.
1, 13
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2 and 13, than apply into the LCM equation.
GCF(2,13) = 1
LCM(2,13) = ( 2 × 13) / 1
LCM(2,13) = 26 / 1
LCM(2,13) = 26
(i) The LCM of 13 and 2 is associative
LCM of 2 and 13 = LCM of 13 and 2
1. What is the LCM of 2 and 13?
Answer: LCM of 2 and 13 is 26.
2. What are the Factors of 2?
Answer: Factors of 2 are 1, 2. There are 2 integers that are factors of 2. The greatest factor of 2 is 2.
3. What are the Factors of 13?
Answer: Factors of 13 are 1, 13. There are 2 integers that are factors of 13. The greatest factor of 13 is 13.
4. How to Find the LCM of 2 and 13?
Answer:
Least Common Multiple of 2 and 13 = 26
Step 1: Find the prime factorization of 2
2 = 2
Step 2: Find the prime factorization of 13
13 = 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 26 = 2 x 13
Step 4: Therefore, the least common multiple of 2 and 13 is 26.