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What is the Least Common Multiple of 64770 and 64784?

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 64770 and 64784 is 2098029840.

LCM(64770,64784) = 2098029840

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Least Common Multiple of 64770 and 64784 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64770 and 64784, than apply into the LCM equation.

GCF(64770,64784) = 2
LCM(64770,64784) = ( 64770 × 64784) / 2
LCM(64770,64784) = 4196059680 / 2
LCM(64770,64784) = 2098029840

Least Common Multiple (LCM) of 64770 and 64784 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64770 and 64784. First we will calculate the prime factors of 64770 and 64784.

Prime Factorization of 64770

Prime factors of 64770 are 2, 3, 5, 17, 127. Prime factorization of 64770 in exponential form is:

64770 = 21 × 31 × 51 × 171 × 1271

Prime Factorization of 64784

Prime factors of 64784 are 2, 4049. Prime factorization of 64784 in exponential form is:

64784 = 24 × 40491

Now multiplying the highest exponent prime factors to calculate the LCM of 64770 and 64784.

LCM(64770,64784) = 24 × 31 × 51 × 171 × 1271 × 40491
LCM(64770,64784) = 2098029840