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What is the Least Common Multiple of 78425 and 78435?

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 78425 and 78435 is 1230252975.

LCM(78425,78435) = 1230252975

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Least Common Multiple of 78425 and 78435 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78425 and 78435, than apply into the LCM equation.

GCF(78425,78435) = 5
LCM(78425,78435) = ( 78425 × 78435) / 5
LCM(78425,78435) = 6151264875 / 5
LCM(78425,78435) = 1230252975

Least Common Multiple (LCM) of 78425 and 78435 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78425 and 78435. First we will calculate the prime factors of 78425 and 78435.

Prime Factorization of 78425

Prime factors of 78425 are 5, 3137. Prime factorization of 78425 in exponential form is:

78425 = 52 × 31371

Prime Factorization of 78435

Prime factors of 78435 are 3, 5, 7, 83. Prime factorization of 78435 in exponential form is:

78435 = 33 × 51 × 71 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 78425 and 78435.

LCM(78425,78435) = 52 × 31371 × 33 × 71 × 831
LCM(78425,78435) = 1230252975