Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 691 and 697 the smallest integer that is 481627 that is divisible by both numbers.
Least Common Multiple (LCM) of 691 and 697 is 481627.
LCM(691,697) = 481627
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 691 and 697. First we will calculate the prime factors of 691 and 697.
Prime Factorization of 691
691 | 691 |
1 |
Prime factors of 691 are 691. Prime factorization of 691 in exponential form is:
691 = 6911
Prime Factorization of 697
17 | 697 |
41 | 41 |
1 |
Prime factors of 697 are 17,41. Prime factorization of 697 in exponential form is:
697 = 171×411
Now multiplying the highest exponent prime factors to calculate the LCM of 691 and 697.
LCM(691,697) = 171×411×6911
LCM(691,697) = 481627
Factors of 691
List of positive integer factors of 691 that divides 691 without a remainder.
1, 691
Factors of 697
List of positive integer factors of 697 that divides 697 without a remainder.
1, 17, 41, 697
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 691 and 697, than apply into the LCM equation.
GCF(691,697) = 1
LCM(691,697) = ( 691 × 697) / 1
LCM(691,697) = 481627 / 1
LCM(691,697) = 481627
(i) The LCM of 697 and 691 is associative
LCM of 691 and 697 = LCM of 697 and 691
1. What is the LCM of 691 and 697?
Answer: LCM of 691 and 697 is 481627.
2. What are the Factors of 691?
Answer: Factors of 691 are 1, 691. There are 2 integers that are factors of 691. The greatest factor of 691 is 691.
3. What are the Factors of 697?
Answer: Factors of 697 are 1, 17, 41, 697. There are 4 integers that are factors of 697. The greatest factor of 697 is 697.
4. How to Find the LCM of 691 and 697?
Answer:
Least Common Multiple of 691 and 697 = 481627
Step 1: Find the prime factorization of 691
691 = 691
Step 2: Find the prime factorization of 697
697 = 17 x 41
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 481627 = 17 x 41 x 691
Step 4: Therefore, the least common multiple of 691 and 697 is 481627.