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What is the Least Common Multiple of 67415 and 67425?

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 67415 and 67425 is 909091275.

LCM(67415,67425) = 909091275

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Least Common Multiple of 67415 and 67425 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67415 and 67425, than apply into the LCM equation.

GCF(67415,67425) = 5
LCM(67415,67425) = ( 67415 × 67425) / 5
LCM(67415,67425) = 4545456375 / 5
LCM(67415,67425) = 909091275

Least Common Multiple (LCM) of 67415 and 67425 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67415 and 67425. First we will calculate the prime factors of 67415 and 67425.

Prime Factorization of 67415

Prime factors of 67415 are 5, 97, 139. Prime factorization of 67415 in exponential form is:

67415 = 51 × 971 × 1391

Prime Factorization of 67425

Prime factors of 67425 are 3, 5, 29, 31. Prime factorization of 67425 in exponential form is:

67425 = 31 × 52 × 291 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 67415 and 67425.

LCM(67415,67425) = 52 × 971 × 1391 × 31 × 291 × 311
LCM(67415,67425) = 909091275