Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 662 and 669 the smallest integer that is 442878 that is divisible by both numbers.
Least Common Multiple (LCM) of 662 and 669 is 442878.
LCM(662,669) = 442878
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 662 and 669. First we will calculate the prime factors of 662 and 669.
Prime Factorization of 662
2 | 662 |
331 | 331 |
1 |
Prime factors of 662 are 2,331. Prime factorization of 662 in exponential form is:
662 = 21×3311
Prime Factorization of 669
3 | 669 |
223 | 223 |
1 |
Prime factors of 669 are 3,223. Prime factorization of 669 in exponential form is:
669 = 31×2231
Now multiplying the highest exponent prime factors to calculate the LCM of 662 and 669.
LCM(662,669) = 21×31×2231×3311
LCM(662,669) = 442878
Factors of 662
List of positive integer factors of 662 that divides 662 without a remainder.
1, 2, 331, 662
Factors of 669
List of positive integer factors of 669 that divides 669 without a remainder.
1, 3, 223, 669
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 662 and 669, than apply into the LCM equation.
GCF(662,669) = 1
LCM(662,669) = ( 662 × 669) / 1
LCM(662,669) = 442878 / 1
LCM(662,669) = 442878
(i) The LCM of 669 and 662 is associative
LCM of 662 and 669 = LCM of 669 and 662
1. What is the LCM of 662 and 669?
Answer: LCM of 662 and 669 is 442878.
2. What are the Factors of 662?
Answer: Factors of 662 are 1, 2, 331, 662. There are 4 integers that are factors of 662. The greatest factor of 662 is 662.
3. What are the Factors of 669?
Answer: Factors of 669 are 1, 3, 223, 669. There are 4 integers that are factors of 669. The greatest factor of 669 is 669.
4. How to Find the LCM of 662 and 669?
Answer:
Least Common Multiple of 662 and 669 = 442878
Step 1: Find the prime factorization of 662
662 = 2 x 331
Step 2: Find the prime factorization of 669
669 = 3 x 223
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 442878 = 2 x 3 x 223 x 331
Step 4: Therefore, the least common multiple of 662 and 669 is 442878.