Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3678 and 3685 the smallest integer that is 13553430 that is divisible by both numbers.
Least Common Multiple (LCM) of 3678 and 3685 is 13553430.
LCM(3678,3685) = 13553430
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 3678 and 3685. First we will calculate the prime factors of 3678 and 3685.
Prime Factorization of 3678
2 | 3678 |
3 | 1839 |
613 | 613 |
1 |
Prime factors of 3678 are 2, 3,613. Prime factorization of 3678 in exponential form is:
3678 = 21×31×6131
Prime Factorization of 3685
5 | 3685 |
11 | 737 |
67 | 67 |
1 |
Prime factors of 3685 are 5, 11,67. Prime factorization of 3685 in exponential form is:
3685 = 51×111×671
Now multiplying the highest exponent prime factors to calculate the LCM of 3678 and 3685.
LCM(3678,3685) = 21×31×51×111×671×6131
LCM(3678,3685) = 13553430
Factors of 3678
List of positive integer factors of 3678 that divides 3678 without a remainder.
1, 2, 3, 6, 613, 1226, 1839, 3678
Factors of 3685
List of positive integer factors of 3685 that divides 3685 without a remainder.
1, 5, 11, 55, 67, 335, 737, 3685
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3678 and 3685, than apply into the LCM equation.
GCF(3678,3685) = 1
LCM(3678,3685) = ( 3678 × 3685) / 1
LCM(3678,3685) = 13553430 / 1
LCM(3678,3685) = 13553430
(i) The LCM of 3685 and 3678 is associative
LCM of 3678 and 3685 = LCM of 3685 and 3678
1. What is the LCM of 3678 and 3685?
Answer: LCM of 3678 and 3685 is 13553430.
2. What are the Factors of 3678?
Answer: Factors of 3678 are 1, 2, 3, 6, 613, 1226, 1839, 3678. There are 8 integers that are factors of 3678. The greatest factor of 3678 is 3678.
3. What are the Factors of 3685?
Answer: Factors of 3685 are 1, 5, 11, 55, 67, 335, 737, 3685. There are 8 integers that are factors of 3685. The greatest factor of 3685 is 3685.
4. How to Find the LCM of 3678 and 3685?
Answer:
Least Common Multiple of 3678 and 3685 = 13553430
Step 1: Find the prime factorization of 3678
3678 = 2 x 3 x 613
Step 2: Find the prime factorization of 3685
3685 = 5 x 11 x 67
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 13553430 = 2 x 3 x 5 x 11 x 67 x 613
Step 4: Therefore, the least common multiple of 3678 and 3685 is 13553430.