Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 938 and 942 the smallest integer that is 441798 that is divisible by both numbers.
Least Common Multiple (LCM) of 938 and 942 is 441798.
LCM(938,942) = 441798
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 938 and 942. First we will calculate the prime factors of 938 and 942.
Prime Factorization of 938
2 | 938 |
7 | 469 |
67 | 67 |
1 |
Prime factors of 938 are 2, 7,67. Prime factorization of 938 in exponential form is:
938 = 21×71×671
Prime Factorization of 942
2 | 942 |
3 | 471 |
157 | 157 |
1 |
Prime factors of 942 are 2, 3,157. Prime factorization of 942 in exponential form is:
942 = 21×31×1571
Now multiplying the highest exponent prime factors to calculate the LCM of 938 and 942.
LCM(938,942) = 21×31×71×671×1571
LCM(938,942) = 441798
Factors of 938
List of positive integer factors of 938 that divides 938 without a remainder.
1, 2, 7, 14, 67, 134, 469, 938
Factors of 942
List of positive integer factors of 942 that divides 942 without a remainder.
1, 2, 3, 6, 157, 314, 471, 942
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 938 and 942, than apply into the LCM equation.
GCF(938,942) = 2
LCM(938,942) = ( 938 × 942) / 2
LCM(938,942) = 883596 / 2
LCM(938,942) = 441798
(i) The LCM of 942 and 938 is associative
LCM of 938 and 942 = LCM of 942 and 938
1. What is the LCM of 938 and 942?
Answer: LCM of 938 and 942 is 441798.
2. What are the Factors of 938?
Answer: Factors of 938 are 1, 2, 7, 14, 67, 134, 469, 938. There are 8 integers that are factors of 938. The greatest factor of 938 is 938.
3. What are the Factors of 942?
Answer: Factors of 942 are 1, 2, 3, 6, 157, 314, 471, 942. There are 8 integers that are factors of 942. The greatest factor of 942 is 942.
4. How to Find the LCM of 938 and 942?
Answer:
Least Common Multiple of 938 and 942 = 441798
Step 1: Find the prime factorization of 938
938 = 2 x 7 x 67
Step 2: Find the prime factorization of 942
942 = 2 x 3 x 157
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 441798 = 2 x 3 x 7 x 67 x 157
Step 4: Therefore, the least common multiple of 938 and 942 is 441798.