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What is the Least Common Multiple of 65972 and 65986?

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 65972 and 65986 is 2176614196.

LCM(65972,65986) = 2176614196

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Least Common Multiple of 65972 and 65986 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65972 and 65986, than apply into the LCM equation.

GCF(65972,65986) = 2
LCM(65972,65986) = ( 65972 × 65986) / 2
LCM(65972,65986) = 4353228392 / 2
LCM(65972,65986) = 2176614196

Least Common Multiple (LCM) of 65972 and 65986 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65972 and 65986. First we will calculate the prime factors of 65972 and 65986.

Prime Factorization of 65972

Prime factors of 65972 are 2, 16493. Prime factorization of 65972 in exponential form is:

65972 = 22 × 164931

Prime Factorization of 65986

Prime factors of 65986 are 2, 32993. Prime factorization of 65986 in exponential form is:

65986 = 21 × 329931

Now multiplying the highest exponent prime factors to calculate the LCM of 65972 and 65986.

LCM(65972,65986) = 22 × 164931 × 329931
LCM(65972,65986) = 2176614196