Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2685 and 2689 the smallest integer that is 7219965 that is divisible by both numbers.
Least Common Multiple (LCM) of 2685 and 2689 is 7219965.
LCM(2685,2689) = 7219965
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 2685 and 2689. First we will calculate the prime factors of 2685 and 2689.
Prime Factorization of 2685
3 | 2685 |
5 | 895 |
179 | 179 |
1 |
Prime factors of 2685 are 3, 5,179. Prime factorization of 2685 in exponential form is:
2685 = 31×51×1791
Prime Factorization of 2689
2689 | 2689 |
1 |
Prime factors of 2689 are 2689. Prime factorization of 2689 in exponential form is:
2689 = 26891
Now multiplying the highest exponent prime factors to calculate the LCM of 2685 and 2689.
LCM(2685,2689) = 31×51×1791×26891
LCM(2685,2689) = 7219965
Factors of 2685
List of positive integer factors of 2685 that divides 2685 without a remainder.
1, 3, 5, 15, 179, 537, 895, 2685
Factors of 2689
List of positive integer factors of 2689 that divides 2689 without a remainder.
1, 2689
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2685 and 2689, than apply into the LCM equation.
GCF(2685,2689) = 1
LCM(2685,2689) = ( 2685 × 2689) / 1
LCM(2685,2689) = 7219965 / 1
LCM(2685,2689) = 7219965
(i) The LCM of 2689 and 2685 is associative
LCM of 2685 and 2689 = LCM of 2689 and 2685
1. What is the LCM of 2685 and 2689?
Answer: LCM of 2685 and 2689 is 7219965.
2. What are the Factors of 2685?
Answer: Factors of 2685 are 1, 3, 5, 15, 179, 537, 895, 2685. There are 8 integers that are factors of 2685. The greatest factor of 2685 is 2685.
3. What are the Factors of 2689?
Answer: Factors of 2689 are 1, 2689. There are 2 integers that are factors of 2689. The greatest factor of 2689 is 2689.
4. How to Find the LCM of 2685 and 2689?
Answer:
Least Common Multiple of 2685 and 2689 = 7219965
Step 1: Find the prime factorization of 2685
2685 = 3 x 5 x 179
Step 2: Find the prime factorization of 2689
2689 = 2689
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 7219965 = 3 x 5 x 179 x 2689
Step 4: Therefore, the least common multiple of 2685 and 2689 is 7219965.