What is the Least Common Multiple of 938 and 958?
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 958 is 449302.
LCM(938,958) = 449302
Least Common Multiple of 938 and 958 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 958, than apply into the LCM equation.
GCF(938,958) = 2
LCM(938,958) = ( 938 × 958) / 2
LCM(938,958) = 898604 / 2
LCM(938,958) = 449302
Least Common Multiple (LCM) of 938 and 958 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 938 and 958. First we will calculate the prime factors of 938 and 958.
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 958
Prime factors of 958 are 2, 479. Prime factorization of 958 in exponential form is:
958 = 21 × 4791
Now multiplying the highest exponent prime factors to calculate the LCM of 938 and 958.
LCM(938,958) = 21 × 71 × 671 × 4791
LCM(938,958) = 449302
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