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What is the Least Common Multiple of 67428 and 67442?

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 67428 and 67442 is 2273739588.

LCM(67428,67442) = 2273739588

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Least Common Multiple of 67428 and 67442 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67428 and 67442, than apply into the LCM equation.

GCF(67428,67442) = 2
LCM(67428,67442) = ( 67428 × 67442) / 2
LCM(67428,67442) = 4547479176 / 2
LCM(67428,67442) = 2273739588

Least Common Multiple (LCM) of 67428 and 67442 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67428 and 67442. First we will calculate the prime factors of 67428 and 67442.

Prime Factorization of 67428

Prime factors of 67428 are 2, 3, 1873. Prime factorization of 67428 in exponential form is:

67428 = 22 × 32 × 18731

Prime Factorization of 67442

Prime factors of 67442 are 2, 33721. Prime factorization of 67442 in exponential form is:

67442 = 21 × 337211

Now multiplying the highest exponent prime factors to calculate the LCM of 67428 and 67442.

LCM(67428,67442) = 22 × 32 × 18731 × 337211
LCM(67428,67442) = 2273739588