What is the Least Common Multiple of 824 and 838?
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 824 and 838 is 345256.
LCM(824,838) = 345256
Least Common Multiple of 824 and 838 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 824 and 838, than apply into the LCM equation.
GCF(824,838) = 2
LCM(824,838) = ( 824 × 838) / 2
LCM(824,838) = 690512 / 2
LCM(824,838) = 345256
Least Common Multiple (LCM) of 824 and 838 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 824 and 838. First we will calculate the prime factors of 824 and 838.
Prime Factorization of 824
Prime factors of 824 are 2, 103. Prime factorization of 824 in exponential form is:
824 = 23 × 1031
Prime Factorization of 838
Prime factors of 838 are 2, 419. Prime factorization of 838 in exponential form is:
838 = 21 × 4191
Now multiplying the highest exponent prime factors to calculate the LCM of 824 and 838.
LCM(824,838) = 23 × 1031 × 4191
LCM(824,838) = 345256
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