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What is the Least Common Multiple of 21032 and 21042?

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 21032 and 21042 is 221277672.

LCM(21032,21042) = 221277672

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Least Common Multiple of 21032 and 21042 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21032 and 21042, than apply into the LCM equation.

GCF(21032,21042) = 2
LCM(21032,21042) = ( 21032 × 21042) / 2
LCM(21032,21042) = 442555344 / 2
LCM(21032,21042) = 221277672

Least Common Multiple (LCM) of 21032 and 21042 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21032 and 21042. First we will calculate the prime factors of 21032 and 21042.

Prime Factorization of 21032

Prime factors of 21032 are 2, 11, 239. Prime factorization of 21032 in exponential form is:

21032 = 23 × 111 × 2391

Prime Factorization of 21042

Prime factors of 21042 are 2, 3, 7, 167. Prime factorization of 21042 in exponential form is:

21042 = 21 × 32 × 71 × 1671

Now multiplying the highest exponent prime factors to calculate the LCM of 21032 and 21042.

LCM(21032,21042) = 23 × 111 × 2391 × 32 × 71 × 1671
LCM(21032,21042) = 221277672