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What is the Least Common Multiple of 77838 and 77855?

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 77838 and 77855 is 6060077490.

LCM(77838,77855) = 6060077490

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Least Common Multiple of 77838 and 77855 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77838 and 77855, than apply into the LCM equation.

GCF(77838,77855) = 1
LCM(77838,77855) = ( 77838 × 77855) / 1
LCM(77838,77855) = 6060077490 / 1
LCM(77838,77855) = 6060077490

Least Common Multiple (LCM) of 77838 and 77855 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77838 and 77855. First we will calculate the prime factors of 77838 and 77855.

Prime Factorization of 77838

Prime factors of 77838 are 2, 3, 12973. Prime factorization of 77838 in exponential form is:

77838 = 21 × 31 × 129731

Prime Factorization of 77855

Prime factors of 77855 are 5, 23, 677. Prime factorization of 77855 in exponential form is:

77855 = 51 × 231 × 6771

Now multiplying the highest exponent prime factors to calculate the LCM of 77838 and 77855.

LCM(77838,77855) = 21 × 31 × 129731 × 51 × 231 × 6771
LCM(77838,77855) = 6060077490