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 668 the smallest integer that is 221108 that is divisible by both numbers.
Least Common Multiple (LCM) of 662 and 668 is 221108.
LCM(662,668) = 221108
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 668. First we will calculate the prime factors of 662 and 668.
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 668
2 | 668 |
2 | 334 |
167 | 167 |
1 |
Prime factors of 668 are 2,167. Prime factorization of 668 in exponential form is:
668 = 22×1671
Now multiplying the highest exponent prime factors to calculate the LCM of 662 and 668.
LCM(662,668) = 22×1671×3311
LCM(662,668) = 221108
Factors of 662
List of positive integer factors of 662 that divides 662 without a remainder.
1, 2, 331, 662
Factors of 668
List of positive integer factors of 668 that divides 668 without a remainder.
1, 2, 4, 167, 334, 668
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 662 and 668, than apply into the LCM equation.
GCF(662,668) = 2
LCM(662,668) = ( 662 × 668) / 2
LCM(662,668) = 442216 / 2
LCM(662,668) = 221108
(i) The LCM of 668 and 662 is associative
LCM of 662 and 668 = LCM of 668 and 662
1. What is the LCM of 662 and 668?
Answer: LCM of 662 and 668 is 221108.
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 668?
Answer: Factors of 668 are 1, 2, 4, 167, 334, 668. There are 6 integers that are factors of 668. The greatest factor of 668 is 668.
4. How to Find the LCM of 662 and 668?
Answer:
Least Common Multiple of 662 and 668 = 221108
Step 1: Find the prime factorization of 662
662 = 2 x 331
Step 2: Find the prime factorization of 668
668 = 2 x 2 x 167
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 221108 = 2 x 2 x 167 x 331
Step 4: Therefore, the least common multiple of 662 and 668 is 221108.