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What is the Least Common Multiple of 64783 and 64789?

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 64783 and 64789 is 4197225787.

LCM(64783,64789) = 4197225787

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Least Common Multiple of 64783 and 64789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64783 and 64789, than apply into the LCM equation.

GCF(64783,64789) = 1
LCM(64783,64789) = ( 64783 × 64789) / 1
LCM(64783,64789) = 4197225787 / 1
LCM(64783,64789) = 4197225787

Least Common Multiple (LCM) of 64783 and 64789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64783 and 64789. First we will calculate the prime factors of 64783 and 64789.

Prime Factorization of 64783

Prime factors of 64783 are 64783. Prime factorization of 64783 in exponential form is:

64783 = 647831

Prime Factorization of 64789

Prime factors of 64789 are 67, 967. Prime factorization of 64789 in exponential form is:

64789 = 671 × 9671

Now multiplying the highest exponent prime factors to calculate the LCM of 64783 and 64789.

LCM(64783,64789) = 647831 × 671 × 9671
LCM(64783,64789) = 4197225787