What is the Least Common Multiple of 778 and 797?
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 778 and 797 is 620066.
LCM(778,797) = 620066
Least Common Multiple of 778 and 797 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 778 and 797, than apply into the LCM equation.
GCF(778,797) = 1
LCM(778,797) = ( 778 × 797) / 1
LCM(778,797) = 620066 / 1
LCM(778,797) = 620066
Least Common Multiple (LCM) of 778 and 797 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 778 and 797. First we will calculate the prime factors of 778 and 797.
Prime Factorization of 778
Prime factors of 778 are 2, 389. Prime factorization of 778 in exponential form is:
778 = 21 × 3891
Prime Factorization of 797
Prime factors of 797 are 797. Prime factorization of 797 in exponential form is:
797 = 7971
Now multiplying the highest exponent prime factors to calculate the LCM of 778 and 797.
LCM(778,797) = 21 × 3891 × 7971
LCM(778,797) = 620066
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