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What is the Least Common Multiple of 85731 and 85748?

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 85731 and 85748 is 432427164.

LCM(85731,85748) = 432427164

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Least Common Multiple of 85731 and 85748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85731 and 85748, than apply into the LCM equation.

GCF(85731,85748) = 17
LCM(85731,85748) = ( 85731 × 85748) / 17
LCM(85731,85748) = 7351261788 / 17
LCM(85731,85748) = 432427164

Least Common Multiple (LCM) of 85731 and 85748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85731 and 85748. First we will calculate the prime factors of 85731 and 85748.

Prime Factorization of 85731

Prime factors of 85731 are 3, 17, 41. Prime factorization of 85731 in exponential form is:

85731 = 31 × 171 × 412

Prime Factorization of 85748

Prime factors of 85748 are 2, 13, 17, 97. Prime factorization of 85748 in exponential form is:

85748 = 22 × 131 × 171 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 85731 and 85748.

LCM(85731,85748) = 31 × 171 × 412 × 22 × 131 × 971
LCM(85731,85748) = 432427164