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What is the Least Common Multiple of 79840 and 79849?

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 79840 and 79849 is 6375144160.

LCM(79840,79849) = 6375144160

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Least Common Multiple of 79840 and 79849 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79840 and 79849, than apply into the LCM equation.

GCF(79840,79849) = 1
LCM(79840,79849) = ( 79840 × 79849) / 1
LCM(79840,79849) = 6375144160 / 1
LCM(79840,79849) = 6375144160

Least Common Multiple (LCM) of 79840 and 79849 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79840 and 79849. First we will calculate the prime factors of 79840 and 79849.

Prime Factorization of 79840

Prime factors of 79840 are 2, 5, 499. Prime factorization of 79840 in exponential form is:

79840 = 25 × 51 × 4991

Prime Factorization of 79849

Prime factors of 79849 are 7, 11, 17, 61. Prime factorization of 79849 in exponential form is:

79849 = 71 × 111 × 171 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 79840 and 79849.

LCM(79840,79849) = 25 × 51 × 4991 × 71 × 111 × 171 × 611
LCM(79840,79849) = 6375144160