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What is the Least Common Multiple of 42228 and 42234?

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 42228 and 42234 is 297242892.

LCM(42228,42234) = 297242892

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Least Common Multiple of 42228 and 42234 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42228 and 42234, than apply into the LCM equation.

GCF(42228,42234) = 6
LCM(42228,42234) = ( 42228 × 42234) / 6
LCM(42228,42234) = 1783457352 / 6
LCM(42228,42234) = 297242892

Least Common Multiple (LCM) of 42228 and 42234 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42228 and 42234. First we will calculate the prime factors of 42228 and 42234.

Prime Factorization of 42228

Prime factors of 42228 are 2, 3, 17, 23. Prime factorization of 42228 in exponential form is:

42228 = 22 × 33 × 171 × 231

Prime Factorization of 42234

Prime factors of 42234 are 2, 3, 7039. Prime factorization of 42234 in exponential form is:

42234 = 21 × 31 × 70391

Now multiplying the highest exponent prime factors to calculate the LCM of 42228 and 42234.

LCM(42228,42234) = 22 × 33 × 171 × 231 × 70391
LCM(42228,42234) = 297242892