Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 664 and 671 the smallest integer that is 445544 that is divisible by both numbers.
Least Common Multiple (LCM) of 664 and 671 is 445544.
LCM(664,671) = 445544
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 664 and 671. First we will calculate the prime factors of 664 and 671.
Prime Factorization of 664
2 | 664 |
2 | 332 |
2 | 166 |
83 | 83 |
1 |
Prime factors of 664 are 2,83. Prime factorization of 664 in exponential form is:
664 = 23×831
Prime Factorization of 671
11 | 671 |
61 | 61 |
1 |
Prime factors of 671 are 11,61. Prime factorization of 671 in exponential form is:
671 = 111×611
Now multiplying the highest exponent prime factors to calculate the LCM of 664 and 671.
LCM(664,671) = 23×111×611×831
LCM(664,671) = 445544
Factors of 664
List of positive integer factors of 664 that divides 664 without a remainder.
1, 2, 4, 8, 83, 166, 332, 664
Factors of 671
List of positive integer factors of 671 that divides 671 without a remainder.
1, 11, 61, 671
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 664 and 671, than apply into the LCM equation.
GCF(664,671) = 1
LCM(664,671) = ( 664 × 671) / 1
LCM(664,671) = 445544 / 1
LCM(664,671) = 445544
(i) The LCM of 671 and 664 is associative
LCM of 664 and 671 = LCM of 671 and 664
1. What is the LCM of 664 and 671?
Answer: LCM of 664 and 671 is 445544.
2. What are the Factors of 664?
Answer: Factors of 664 are 1, 2, 4, 8, 83, 166, 332, 664. There are 8 integers that are factors of 664. The greatest factor of 664 is 664.
3. What are the Factors of 671?
Answer: Factors of 671 are 1, 11, 61, 671. There are 4 integers that are factors of 671. The greatest factor of 671 is 671.
4. How to Find the LCM of 664 and 671?
Answer:
Least Common Multiple of 664 and 671 = 445544
Step 1: Find the prime factorization of 664
664 = 2 x 2 x 2 x 83
Step 2: Find the prime factorization of 671
671 = 11 x 61
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 445544 = 2 x 2 x 2 x 11 x 61 x 83
Step 4: Therefore, the least common multiple of 664 and 671 is 445544.