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What is the Least Common Multiple of 21237 and 21254?

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 21237 and 21254 is 451371198.

LCM(21237,21254) = 451371198

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Least Common Multiple of 21237 and 21254 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21237 and 21254, than apply into the LCM equation.

GCF(21237,21254) = 1
LCM(21237,21254) = ( 21237 × 21254) / 1
LCM(21237,21254) = 451371198 / 1
LCM(21237,21254) = 451371198

Least Common Multiple (LCM) of 21237 and 21254 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21237 and 21254. First we will calculate the prime factors of 21237 and 21254.

Prime Factorization of 21237

Prime factors of 21237 are 3, 7079. Prime factorization of 21237 in exponential form is:

21237 = 31 × 70791

Prime Factorization of 21254

Prime factors of 21254 are 2, 10627. Prime factorization of 21254 in exponential form is:

21254 = 21 × 106271

Now multiplying the highest exponent prime factors to calculate the LCM of 21237 and 21254.

LCM(21237,21254) = 31 × 70791 × 21 × 106271
LCM(21237,21254) = 451371198