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What is the Least Common Multiple of 21043 and 21063?

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 21043 and 21063 is 443228709.

LCM(21043,21063) = 443228709

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Least Common Multiple of 21043 and 21063 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21043 and 21063, than apply into the LCM equation.

GCF(21043,21063) = 1
LCM(21043,21063) = ( 21043 × 21063) / 1
LCM(21043,21063) = 443228709 / 1
LCM(21043,21063) = 443228709

Least Common Multiple (LCM) of 21043 and 21063 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21043 and 21063. First we will calculate the prime factors of 21043 and 21063.

Prime Factorization of 21043

Prime factors of 21043 are 11, 1913. Prime factorization of 21043 in exponential form is:

21043 = 111 × 19131

Prime Factorization of 21063

Prime factors of 21063 are 3, 7, 17, 59. Prime factorization of 21063 in exponential form is:

21063 = 31 × 71 × 171 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 21043 and 21063.

LCM(21043,21063) = 111 × 19131 × 31 × 71 × 171 × 591
LCM(21043,21063) = 443228709