What is the Least Common Multiple of 938 and 942?
Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.
Least common multiple (LCM) of 938 and 942 is 441798.
LCM(938,942) = 441798
Least Common Multiple of 938 and 942 with GCF Formula
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
Least Common Multiple (LCM) of 938 and 942 with Primes
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
Prime factors of 938 are 2, 7, 67. Prime factorization of 938 in exponential form is:
938 = 21 × 71 × 671
Prime Factorization of 942
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 × 71 × 671 × 31 × 1571
LCM(938,942) = 441798
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