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What is the Least Common Multiple of 47809 and 47821?

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 47809 and 47821 is 2286274189.

LCM(47809,47821) = 2286274189

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Least Common Multiple of 47809 and 47821 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47809 and 47821, than apply into the LCM equation.

GCF(47809,47821) = 1
LCM(47809,47821) = ( 47809 × 47821) / 1
LCM(47809,47821) = 2286274189 / 1
LCM(47809,47821) = 2286274189

Least Common Multiple (LCM) of 47809 and 47821 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47809 and 47821. First we will calculate the prime factors of 47809 and 47821.

Prime Factorization of 47809

Prime factors of 47809 are 47809. Prime factorization of 47809 in exponential form is:

47809 = 478091

Prime Factorization of 47821

Prime factors of 47821 are 17, 29, 97. Prime factorization of 47821 in exponential form is:

47821 = 171 × 291 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 47809 and 47821.

LCM(47809,47821) = 478091 × 171 × 291 × 971
LCM(47809,47821) = 2286274189