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What is the Least Common Multiple of 39770 and 39774?

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 39770 and 39774 is 790905990.

LCM(39770,39774) = 790905990

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Least Common Multiple of 39770 and 39774 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39770 and 39774, than apply into the LCM equation.

GCF(39770,39774) = 2
LCM(39770,39774) = ( 39770 × 39774) / 2
LCM(39770,39774) = 1581811980 / 2
LCM(39770,39774) = 790905990

Least Common Multiple (LCM) of 39770 and 39774 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39770 and 39774. First we will calculate the prime factors of 39770 and 39774.

Prime Factorization of 39770

Prime factors of 39770 are 2, 5, 41, 97. Prime factorization of 39770 in exponential form is:

39770 = 21 × 51 × 411 × 971

Prime Factorization of 39774

Prime factors of 39774 are 2, 3, 7, 947. Prime factorization of 39774 in exponential form is:

39774 = 21 × 31 × 71 × 9471

Now multiplying the highest exponent prime factors to calculate the LCM of 39770 and 39774.

LCM(39770,39774) = 21 × 51 × 411 × 971 × 31 × 71 × 9471
LCM(39770,39774) = 790905990