Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2785 and 2786 the smallest integer that is 7759010 that is divisible by both numbers.
Least Common Multiple (LCM) of 2785 and 2786 is 7759010.
LCM(2785,2786) = 7759010
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 2785 and 2786. First we will calculate the prime factors of 2785 and 2786.
Prime Factorization of 2785
5 | 2785 |
557 | 557 |
1 |
Prime factors of 2785 are 5,557. Prime factorization of 2785 in exponential form is:
2785 = 51×5571
Prime Factorization of 2786
2 | 2786 |
7 | 1393 |
199 | 199 |
1 |
Prime factors of 2786 are 2, 7,199. Prime factorization of 2786 in exponential form is:
2786 = 21×71×1991
Now multiplying the highest exponent prime factors to calculate the LCM of 2785 and 2786.
LCM(2785,2786) = 21×51×71×1991×5571
LCM(2785,2786) = 7759010
Factors of 2785
List of positive integer factors of 2785 that divides 2785 without a remainder.
1, 5, 557, 2785
Factors of 2786
List of positive integer factors of 2786 that divides 2786 without a remainder.
1, 2, 7, 14, 199, 398, 1393, 2786
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2785 and 2786, than apply into the LCM equation.
GCF(2785,2786) = 1
LCM(2785,2786) = ( 2785 × 2786) / 1
LCM(2785,2786) = 7759010 / 1
LCM(2785,2786) = 7759010
(i) The LCM of 2786 and 2785 is associative
LCM of 2785 and 2786 = LCM of 2786 and 2785
1. What is the LCM of 2785 and 2786?
Answer: LCM of 2785 and 2786 is 7759010.
2. What are the Factors of 2785?
Answer: Factors of 2785 are 1, 5, 557, 2785. There are 4 integers that are factors of 2785. The greatest factor of 2785 is 2785.
3. What are the Factors of 2786?
Answer: Factors of 2786 are 1, 2, 7, 14, 199, 398, 1393, 2786. There are 8 integers that are factors of 2786. The greatest factor of 2786 is 2786.
4. How to Find the LCM of 2785 and 2786?
Answer:
Least Common Multiple of 2785 and 2786 = 7759010
Step 1: Find the prime factorization of 2785
2785 = 5 x 557
Step 2: Find the prime factorization of 2786
2786 = 2 x 7 x 199
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 7759010 = 2 x 5 x 7 x 199 x 557
Step 4: Therefore, the least common multiple of 2785 and 2786 is 7759010.