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What is the Least Common Multiple of 102 and 106?

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 102 and 106 is 5406.

LCM(102,106) = 5406

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Least Common Multiple of 102 and 106 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 102 and 106, than apply into the LCM equation.

GCF(102,106) = 2
LCM(102,106) = ( 102 × 106) / 2
LCM(102,106) = 10812 / 2
LCM(102,106) = 5406

Least Common Multiple (LCM) of 102 and 106 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 102 and 106. First we will calculate the prime factors of 102 and 106.

Prime Factorization of 102

Prime factors of 102 are 2, 3, 17. Prime factorization of 102 in exponential form is:

102 = 21 × 31 × 171

Prime Factorization of 106

Prime factors of 106 are 2, 53. Prime factorization of 106 in exponential form is:

106 = 21 × 531

Now multiplying the highest exponent prime factors to calculate the LCM of 102 and 106.

LCM(102,106) = 21 × 31 × 171 × 531
LCM(102,106) = 5406

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