Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2938 and 2942 the smallest integer that is 4321798 that is divisible by both numbers.
Least Common Multiple (LCM) of 2938 and 2942 is 4321798.
LCM(2938,2942) = 4321798
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 2938 and 2942. First we will calculate the prime factors of 2938 and 2942.
Prime Factorization of 2938
2 | 2938 |
13 | 1469 |
113 | 113 |
1 |
Prime factors of 2938 are 2, 13,113. Prime factorization of 2938 in exponential form is:
2938 = 21×131×1131
Prime Factorization of 2942
2 | 2942 |
1471 | 1471 |
1 |
Prime factors of 2942 are 2,1471. Prime factorization of 2942 in exponential form is:
2942 = 21×14711
Now multiplying the highest exponent prime factors to calculate the LCM of 2938 and 2942.
LCM(2938,2942) = 21×131×1131×14711
LCM(2938,2942) = 4321798
Factors of 2938
List of positive integer factors of 2938 that divides 2938 without a remainder.
1, 2, 13, 26, 113, 226, 1469, 2938
Factors of 2942
List of positive integer factors of 2942 that divides 2942 without a remainder.
1, 2, 1471, 2942
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2938 and 2942, than apply into the LCM equation.
GCF(2938,2942) = 2
LCM(2938,2942) = ( 2938 × 2942) / 2
LCM(2938,2942) = 8643596 / 2
LCM(2938,2942) = 4321798
(i) The LCM of 2942 and 2938 is associative
LCM of 2938 and 2942 = LCM of 2942 and 2938
1. What is the LCM of 2938 and 2942?
Answer: LCM of 2938 and 2942 is 4321798.
2. What are the Factors of 2938?
Answer: Factors of 2938 are 1, 2, 13, 26, 113, 226, 1469, 2938. There are 8 integers that are factors of 2938. The greatest factor of 2938 is 2938.
3. What are the Factors of 2942?
Answer: Factors of 2942 are 1, 2, 1471, 2942. There are 4 integers that are factors of 2942. The greatest factor of 2942 is 2942.
4. How to Find the LCM of 2938 and 2942?
Answer:
Least Common Multiple of 2938 and 2942 = 4321798
Step 1: Find the prime factorization of 2938
2938 = 2 x 13 x 113
Step 2: Find the prime factorization of 2942
2942 = 2 x 1471
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4321798 = 2 x 13 x 113 x 1471
Step 4: Therefore, the least common multiple of 2938 and 2942 is 4321798.