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What is the Least Common Multiple of 77642 and 77650?

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 77642 and 77650 is 3014450650.

LCM(77642,77650) = 3014450650

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Least Common Multiple of 77642 and 77650 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77642 and 77650, than apply into the LCM equation.

GCF(77642,77650) = 2
LCM(77642,77650) = ( 77642 × 77650) / 2
LCM(77642,77650) = 6028901300 / 2
LCM(77642,77650) = 3014450650

Least Common Multiple (LCM) of 77642 and 77650 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77642 and 77650. First we will calculate the prime factors of 77642 and 77650.

Prime Factorization of 77642

Prime factors of 77642 are 2, 38821. Prime factorization of 77642 in exponential form is:

77642 = 21 × 388211

Prime Factorization of 77650

Prime factors of 77650 are 2, 5, 1553. Prime factorization of 77650 in exponential form is:

77650 = 21 × 52 × 15531

Now multiplying the highest exponent prime factors to calculate the LCM of 77642 and 77650.

LCM(77642,77650) = 21 × 388211 × 52 × 15531
LCM(77642,77650) = 3014450650