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What is the Least Common Multiple of 77671 and 77690?

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 77671 and 77690 is 6034259990.

LCM(77671,77690) = 6034259990

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Least Common Multiple of 77671 and 77690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77671 and 77690, than apply into the LCM equation.

GCF(77671,77690) = 1
LCM(77671,77690) = ( 77671 × 77690) / 1
LCM(77671,77690) = 6034259990 / 1
LCM(77671,77690) = 6034259990

Least Common Multiple (LCM) of 77671 and 77690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77671 and 77690. First we will calculate the prime factors of 77671 and 77690.

Prime Factorization of 77671

Prime factors of 77671 are 11, 23, 307. Prime factorization of 77671 in exponential form is:

77671 = 111 × 231 × 3071

Prime Factorization of 77690

Prime factors of 77690 are 2, 5, 17, 457. Prime factorization of 77690 in exponential form is:

77690 = 21 × 51 × 171 × 4571

Now multiplying the highest exponent prime factors to calculate the LCM of 77671 and 77690.

LCM(77671,77690) = 111 × 231 × 3071 × 21 × 51 × 171 × 4571
LCM(77671,77690) = 6034259990