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What is the Least Common Multiple of 67744 and 67748?

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 67744 and 67748 is 1147380128.

LCM(67744,67748) = 1147380128

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Least Common Multiple of 67744 and 67748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67744 and 67748, than apply into the LCM equation.

GCF(67744,67748) = 4
LCM(67744,67748) = ( 67744 × 67748) / 4
LCM(67744,67748) = 4589520512 / 4
LCM(67744,67748) = 1147380128

Least Common Multiple (LCM) of 67744 and 67748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67744 and 67748. First we will calculate the prime factors of 67744 and 67748.

Prime Factorization of 67744

Prime factors of 67744 are 2, 29, 73. Prime factorization of 67744 in exponential form is:

67744 = 25 × 291 × 731

Prime Factorization of 67748

Prime factors of 67748 are 2, 16937. Prime factorization of 67748 in exponential form is:

67748 = 22 × 169371

Now multiplying the highest exponent prime factors to calculate the LCM of 67744 and 67748.

LCM(67744,67748) = 25 × 291 × 731 × 169371
LCM(67744,67748) = 1147380128