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What is the Least Common Multiple of 365 and 385?

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 365 and 385 is 28105.

LCM(365,385) = 28105

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Least Common Multiple of 365 and 385 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 365 and 385, than apply into the LCM equation.

GCF(365,385) = 5
LCM(365,385) = ( 365 × 385) / 5
LCM(365,385) = 140525 / 5
LCM(365,385) = 28105

Least Common Multiple (LCM) of 365 and 385 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 365 and 385. First we will calculate the prime factors of 365 and 385.

Prime Factorization of 365

Prime factors of 365 are 5, 73. Prime factorization of 365 in exponential form is:

365 = 51 × 731

Prime Factorization of 385

Prime factors of 385 are 5, 7, 11. Prime factorization of 385 in exponential form is:

385 = 51 × 71 × 111

Now multiplying the highest exponent prime factors to calculate the LCM of 365 and 385.

LCM(365,385) = 51 × 731 × 71 × 111
LCM(365,385) = 28105