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What is the Least Common Multiple of 21349 and 21369?

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 21349 and 21369 is 456206781.

LCM(21349,21369) = 456206781

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Least Common Multiple of 21349 and 21369 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21349 and 21369, than apply into the LCM equation.

GCF(21349,21369) = 1
LCM(21349,21369) = ( 21349 × 21369) / 1
LCM(21349,21369) = 456206781 / 1
LCM(21349,21369) = 456206781

Least Common Multiple (LCM) of 21349 and 21369 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21349 and 21369. First we will calculate the prime factors of 21349 and 21369.

Prime Factorization of 21349

Prime factors of 21349 are 37, 577. Prime factorization of 21349 in exponential form is:

21349 = 371 × 5771

Prime Factorization of 21369

Prime factors of 21369 are 3, 17, 419. Prime factorization of 21369 in exponential form is:

21369 = 31 × 171 × 4191

Now multiplying the highest exponent prime factors to calculate the LCM of 21349 and 21369.

LCM(21349,21369) = 371 × 5771 × 31 × 171 × 4191
LCM(21349,21369) = 456206781