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What is the Least Common Multiple of 21295 and 21304?

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 21295 and 21304 is 453668680.

LCM(21295,21304) = 453668680

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Least Common Multiple of 21295 and 21304 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21295 and 21304, than apply into the LCM equation.

GCF(21295,21304) = 1
LCM(21295,21304) = ( 21295 × 21304) / 1
LCM(21295,21304) = 453668680 / 1
LCM(21295,21304) = 453668680

Least Common Multiple (LCM) of 21295 and 21304 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21295 and 21304. First we will calculate the prime factors of 21295 and 21304.

Prime Factorization of 21295

Prime factors of 21295 are 5, 4259. Prime factorization of 21295 in exponential form is:

21295 = 51 × 42591

Prime Factorization of 21304

Prime factors of 21304 are 2, 2663. Prime factorization of 21304 in exponential form is:

21304 = 23 × 26631

Now multiplying the highest exponent prime factors to calculate the LCM of 21295 and 21304.

LCM(21295,21304) = 51 × 42591 × 23 × 26631
LCM(21295,21304) = 453668680