Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3655 and 3661 the smallest integer that is 13380955 that is divisible by both numbers.
Least Common Multiple (LCM) of 3655 and 3661 is 13380955.
LCM(3655,3661) = 13380955
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 3655 and 3661. First we will calculate the prime factors of 3655 and 3661.
Prime Factorization of 3655
5 | 3655 |
17 | 731 |
43 | 43 |
1 |
Prime factors of 3655 are 5, 17,43. Prime factorization of 3655 in exponential form is:
3655 = 51×171×431
Prime Factorization of 3661
7 | 3661 |
523 | 523 |
1 |
Prime factors of 3661 are 7,523. Prime factorization of 3661 in exponential form is:
3661 = 71×5231
Now multiplying the highest exponent prime factors to calculate the LCM of 3655 and 3661.
LCM(3655,3661) = 51×71×171×431×5231
LCM(3655,3661) = 13380955
Factors of 3655
List of positive integer factors of 3655 that divides 3655 without a remainder.
1, 5, 17, 43, 85, 215, 731, 3655
Factors of 3661
List of positive integer factors of 3661 that divides 3661 without a remainder.
1, 7, 523, 3661
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3655 and 3661, than apply into the LCM equation.
GCF(3655,3661) = 1
LCM(3655,3661) = ( 3655 × 3661) / 1
LCM(3655,3661) = 13380955 / 1
LCM(3655,3661) = 13380955
(i) The LCM of 3661 and 3655 is associative
LCM of 3655 and 3661 = LCM of 3661 and 3655
1. What is the LCM of 3655 and 3661?
Answer: LCM of 3655 and 3661 is 13380955.
2. What are the Factors of 3655?
Answer: Factors of 3655 are 1, 5, 17, 43, 85, 215, 731, 3655. There are 8 integers that are factors of 3655. The greatest factor of 3655 is 3655.
3. What are the Factors of 3661?
Answer: Factors of 3661 are 1, 7, 523, 3661. There are 4 integers that are factors of 3661. The greatest factor of 3661 is 3661.
4. How to Find the LCM of 3655 and 3661?
Answer:
Least Common Multiple of 3655 and 3661 = 13380955
Step 1: Find the prime factorization of 3655
3655 = 5 x 17 x 43
Step 2: Find the prime factorization of 3661
3661 = 7 x 523
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 13380955 = 5 x 7 x 17 x 43 x 523
Step 4: Therefore, the least common multiple of 3655 and 3661 is 13380955.