Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3917 and 3921 the smallest integer that is 15358557 that is divisible by both numbers.
Least Common Multiple (LCM) of 3917 and 3921 is 15358557.
LCM(3917,3921) = 15358557
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 3917 and 3921. First we will calculate the prime factors of 3917 and 3921.
Prime Factorization of 3917
3917 | 3917 |
1 |
Prime factors of 3917 are 3917. Prime factorization of 3917 in exponential form is:
3917 = 39171
Prime Factorization of 3921
3 | 3921 |
1307 | 1307 |
1 |
Prime factors of 3921 are 3,1307. Prime factorization of 3921 in exponential form is:
3921 = 31×13071
Now multiplying the highest exponent prime factors to calculate the LCM of 3917 and 3921.
LCM(3917,3921) = 31×13071×39171
LCM(3917,3921) = 15358557
Factors of 3917
List of positive integer factors of 3917 that divides 3917 without a remainder.
1, 3917
Factors of 3921
List of positive integer factors of 3921 that divides 3921 without a remainder.
1, 3, 1307, 3921
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3917 and 3921, than apply into the LCM equation.
GCF(3917,3921) = 1
LCM(3917,3921) = ( 3917 × 3921) / 1
LCM(3917,3921) = 15358557 / 1
LCM(3917,3921) = 15358557
(i) The LCM of 3921 and 3917 is associative
LCM of 3917 and 3921 = LCM of 3921 and 3917
1. What is the LCM of 3917 and 3921?
Answer: LCM of 3917 and 3921 is 15358557.
2. What are the Factors of 3917?
Answer: Factors of 3917 are 1, 3917. There are 2 integers that are factors of 3917. The greatest factor of 3917 is 3917.
3. What are the Factors of 3921?
Answer: Factors of 3921 are 1, 3, 1307, 3921. There are 4 integers that are factors of 3921. The greatest factor of 3921 is 3921.
4. How to Find the LCM of 3917 and 3921?
Answer:
Least Common Multiple of 3917 and 3921 = 15358557
Step 1: Find the prime factorization of 3917
3917 = 3917
Step 2: Find the prime factorization of 3921
3921 = 3 x 1307
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 15358557 = 3 x 1307 x 3917
Step 4: Therefore, the least common multiple of 3917 and 3921 is 15358557.