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What is the Least Common Multiple of 85 and 101?

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 85 and 101 is 8585.

LCM(85,101) = 8585

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Least Common Multiple of 85 and 101 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85 and 101, than apply into the LCM equation.

GCF(85,101) = 1
LCM(85,101) = ( 85 × 101) / 1
LCM(85,101) = 8585 / 1
LCM(85,101) = 8585

Least Common Multiple (LCM) of 85 and 101 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85 and 101. First we will calculate the prime factors of 85 and 101.

Prime Factorization of 85

Prime factors of 85 are 5, 17. Prime factorization of 85 in exponential form is:

85 = 51 × 171

Prime Factorization of 101

Prime factors of 101 are 101. Prime factorization of 101 in exponential form is:

101 = 1011

Now multiplying the highest exponent prime factors to calculate the LCM of 85 and 101.

LCM(85,101) = 51 × 171 × 1011
LCM(85,101) = 8585

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