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What is the Least Common Multiple of 20751 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 20751 and 20758 is 430749258.

LCM(20751,20758) = 430749258

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Least Common Multiple of 20751 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 20751 and 20758, than apply into the LCM equation.

GCF(20751,20758) = 1
LCM(20751,20758) = ( 20751 × 20758) / 1
LCM(20751,20758) = 430749258 / 1
LCM(20751,20758) = 430749258

Least Common Multiple (LCM) of 20751 and 20758 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20751 and 20758. First we will calculate the prime factors of 20751 and 20758.

Prime Factorization of 20751

Prime factors of 20751 are 3, 6917. Prime factorization of 20751 in exponential form is:

20751 = 31 × 69171

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 20751 and 20758.

LCM(20751,20758) = 31 × 69171 × 21 × 971 × 1071
LCM(20751,20758) = 430749258