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What is the Least Common Multiple of 47628 and 47642?

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 47628 and 47642 is 162078084.

LCM(47628,47642) = 162078084

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Least Common Multiple of 47628 and 47642 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47628 and 47642, than apply into the LCM equation.

GCF(47628,47642) = 14
LCM(47628,47642) = ( 47628 × 47642) / 14
LCM(47628,47642) = 2269093176 / 14
LCM(47628,47642) = 162078084

Least Common Multiple (LCM) of 47628 and 47642 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47628 and 47642. First we will calculate the prime factors of 47628 and 47642.

Prime Factorization of 47628

Prime factors of 47628 are 2, 3, 7. Prime factorization of 47628 in exponential form is:

47628 = 22 × 35 × 72

Prime Factorization of 47642

Prime factors of 47642 are 2, 7, 41, 83. Prime factorization of 47642 in exponential form is:

47642 = 21 × 71 × 411 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 47628 and 47642.

LCM(47628,47642) = 22 × 35 × 72 × 411 × 831
LCM(47628,47642) = 162078084