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What is the Least Common Multiple of 20739 and 20758?

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 20739 and 20758 is 430500162.

LCM(20739,20758) = 430500162

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Least Common Multiple of 20739 and 20758 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20739 and 20758, than apply into the LCM equation.

GCF(20739,20758) = 1
LCM(20739,20758) = ( 20739 × 20758) / 1
LCM(20739,20758) = 430500162 / 1
LCM(20739,20758) = 430500162

Least Common Multiple (LCM) of 20739 and 20758 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20739 and 20758. First we will calculate the prime factors of 20739 and 20758.

Prime Factorization of 20739

Prime factors of 20739 are 3, 31, 223. Prime factorization of 20739 in exponential form is:

20739 = 31 × 311 × 2231

Prime Factorization of 20758

Prime factors of 20758 are 2, 97, 107. Prime factorization of 20758 in exponential form is:

20758 = 21 × 971 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 20739 and 20758.

LCM(20739,20758) = 31 × 311 × 2231 × 21 × 971 × 1071
LCM(20739,20758) = 430500162