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What is the Least Common Multiple of 72965 and 72978?

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 72965 and 72978 is 5324839770.

LCM(72965,72978) = 5324839770

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Least Common Multiple of 72965 and 72978 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72965 and 72978, than apply into the LCM equation.

GCF(72965,72978) = 1
LCM(72965,72978) = ( 72965 × 72978) / 1
LCM(72965,72978) = 5324839770 / 1
LCM(72965,72978) = 5324839770

Least Common Multiple (LCM) of 72965 and 72978 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72965 and 72978. First we will calculate the prime factors of 72965 and 72978.

Prime Factorization of 72965

Prime factors of 72965 are 5, 14593. Prime factorization of 72965 in exponential form is:

72965 = 51 × 145931

Prime Factorization of 72978

Prime factors of 72978 are 2, 3, 12163. Prime factorization of 72978 in exponential form is:

72978 = 21 × 31 × 121631

Now multiplying the highest exponent prime factors to calculate the LCM of 72965 and 72978.

LCM(72965,72978) = 51 × 145931 × 21 × 31 × 121631
LCM(72965,72978) = 5324839770