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What is the Least Common Multiple of 84634 and 84642?

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 84634 and 84642 is 3581795514.

LCM(84634,84642) = 3581795514

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Least Common Multiple of 84634 and 84642 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84634 and 84642, than apply into the LCM equation.

GCF(84634,84642) = 2
LCM(84634,84642) = ( 84634 × 84642) / 2
LCM(84634,84642) = 7163591028 / 2
LCM(84634,84642) = 3581795514

Least Common Multiple (LCM) of 84634 and 84642 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84634 and 84642. First we will calculate the prime factors of 84634 and 84642.

Prime Factorization of 84634

Prime factors of 84634 are 2, 11, 3847. Prime factorization of 84634 in exponential form is:

84634 = 21 × 111 × 38471

Prime Factorization of 84642

Prime factors of 84642 are 2, 3, 14107. Prime factorization of 84642 in exponential form is:

84642 = 21 × 31 × 141071

Now multiplying the highest exponent prime factors to calculate the LCM of 84634 and 84642.

LCM(84634,84642) = 21 × 111 × 38471 × 31 × 141071
LCM(84634,84642) = 3581795514