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 698 the smallest integer that is 482318 that is divisible by both numbers.
Least Common Multiple (LCM) of 691 and 698 is 482318.
LCM(691,698) = 482318
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 698. First we will calculate the prime factors of 691 and 698.
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 698
2 | 698 |
349 | 349 |
1 |
Prime factors of 698 are 2,349. Prime factorization of 698 in exponential form is:
698 = 21×3491
Now multiplying the highest exponent prime factors to calculate the LCM of 691 and 698.
LCM(691,698) = 21×3491×6911
LCM(691,698) = 482318
Factors of 691
List of positive integer factors of 691 that divides 691 without a remainder.
1, 691
Factors of 698
List of positive integer factors of 698 that divides 698 without a remainder.
1, 2, 349, 698
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 691 and 698, than apply into the LCM equation.
GCF(691,698) = 1
LCM(691,698) = ( 691 × 698) / 1
LCM(691,698) = 482318 / 1
LCM(691,698) = 482318
(i) The LCM of 698 and 691 is associative
LCM of 691 and 698 = LCM of 698 and 691
1. What is the LCM of 691 and 698?
Answer: LCM of 691 and 698 is 482318.
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 698?
Answer: Factors of 698 are 1, 2, 349, 698. There are 4 integers that are factors of 698. The greatest factor of 698 is 698.
4. How to Find the LCM of 691 and 698?
Answer:
Least Common Multiple of 691 and 698 = 482318
Step 1: Find the prime factorization of 691
691 = 691
Step 2: Find the prime factorization of 698
698 = 2 x 349
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 482318 = 2 x 349 x 691
Step 4: Therefore, the least common multiple of 691 and 698 is 482318.