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What is the Least Common Multiple of 79800 and 79814?

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 79800 and 79814 is 454939800.

LCM(79800,79814) = 454939800

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Least Common Multiple of 79800 and 79814 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79800 and 79814, than apply into the LCM equation.

GCF(79800,79814) = 14
LCM(79800,79814) = ( 79800 × 79814) / 14
LCM(79800,79814) = 6369157200 / 14
LCM(79800,79814) = 454939800

Least Common Multiple (LCM) of 79800 and 79814 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79800 and 79814. First we will calculate the prime factors of 79800 and 79814.

Prime Factorization of 79800

Prime factors of 79800 are 2, 3, 5, 7, 19. Prime factorization of 79800 in exponential form is:

79800 = 23 × 31 × 52 × 71 × 191

Prime Factorization of 79814

Prime factors of 79814 are 2, 7, 5701. Prime factorization of 79814 in exponential form is:

79814 = 21 × 71 × 57011

Now multiplying the highest exponent prime factors to calculate the LCM of 79800 and 79814.

LCM(79800,79814) = 23 × 31 × 52 × 71 × 191 × 57011
LCM(79800,79814) = 454939800