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What is the Least Common Multiple of 72135 and 72154?

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 72135 and 72154 is 5204828790.

LCM(72135,72154) = 5204828790

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Least Common Multiple of 72135 and 72154 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72135 and 72154, than apply into the LCM equation.

GCF(72135,72154) = 1
LCM(72135,72154) = ( 72135 × 72154) / 1
LCM(72135,72154) = 5204828790 / 1
LCM(72135,72154) = 5204828790

Least Common Multiple (LCM) of 72135 and 72154 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72135 and 72154. First we will calculate the prime factors of 72135 and 72154.

Prime Factorization of 72135

Prime factors of 72135 are 3, 5, 7, 229. Prime factorization of 72135 in exponential form is:

72135 = 32 × 51 × 71 × 2291

Prime Factorization of 72154

Prime factors of 72154 are 2, 43, 839. Prime factorization of 72154 in exponential form is:

72154 = 21 × 431 × 8391

Now multiplying the highest exponent prime factors to calculate the LCM of 72135 and 72154.

LCM(72135,72154) = 32 × 51 × 71 × 2291 × 21 × 431 × 8391
LCM(72135,72154) = 5204828790