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What is the Least Common Multiple of 68645 and 68654?

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 68645 and 68654 is 4712753830.

LCM(68645,68654) = 4712753830

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Least Common Multiple of 68645 and 68654 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68645 and 68654, than apply into the LCM equation.

GCF(68645,68654) = 1
LCM(68645,68654) = ( 68645 × 68654) / 1
LCM(68645,68654) = 4712753830 / 1
LCM(68645,68654) = 4712753830

Least Common Multiple (LCM) of 68645 and 68654 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68645 and 68654. First we will calculate the prime factors of 68645 and 68654.

Prime Factorization of 68645

Prime factors of 68645 are 5, 13729. Prime factorization of 68645 in exponential form is:

68645 = 51 × 137291

Prime Factorization of 68654

Prime factors of 68654 are 2, 34327. Prime factorization of 68654 in exponential form is:

68654 = 21 × 343271

Now multiplying the highest exponent prime factors to calculate the LCM of 68645 and 68654.

LCM(68645,68654) = 51 × 137291 × 21 × 343271
LCM(68645,68654) = 4712753830