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What is the Least Common Multiple of 21293 and 21300?

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 21293 and 21300 is 453540900.

LCM(21293,21300) = 453540900

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Least Common Multiple of 21293 and 21300 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21293 and 21300, than apply into the LCM equation.

GCF(21293,21300) = 1
LCM(21293,21300) = ( 21293 × 21300) / 1
LCM(21293,21300) = 453540900 / 1
LCM(21293,21300) = 453540900

Least Common Multiple (LCM) of 21293 and 21300 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21293 and 21300. First we will calculate the prime factors of 21293 and 21300.

Prime Factorization of 21293

Prime factors of 21293 are 107, 199. Prime factorization of 21293 in exponential form is:

21293 = 1071 × 1991

Prime Factorization of 21300

Prime factors of 21300 are 2, 3, 5, 71. Prime factorization of 21300 in exponential form is:

21300 = 22 × 31 × 52 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 21293 and 21300.

LCM(21293,21300) = 1071 × 1991 × 22 × 31 × 52 × 711
LCM(21293,21300) = 453540900