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What is the Least Common Multiple of 38420 and 38429?

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 38420 and 38429 is 1476442180.

LCM(38420,38429) = 1476442180

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Least Common Multiple of 38420 and 38429 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38420 and 38429, than apply into the LCM equation.

GCF(38420,38429) = 1
LCM(38420,38429) = ( 38420 × 38429) / 1
LCM(38420,38429) = 1476442180 / 1
LCM(38420,38429) = 1476442180

Least Common Multiple (LCM) of 38420 and 38429 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38420 and 38429. First we will calculate the prime factors of 38420 and 38429.

Prime Factorization of 38420

Prime factors of 38420 are 2, 5, 17, 113. Prime factorization of 38420 in exponential form is:

38420 = 22 × 51 × 171 × 1131

Prime Factorization of 38429

Prime factors of 38429 are 83, 463. Prime factorization of 38429 in exponential form is:

38429 = 831 × 4631

Now multiplying the highest exponent prime factors to calculate the LCM of 38420 and 38429.

LCM(38420,38429) = 22 × 51 × 171 × 1131 × 831 × 4631
LCM(38420,38429) = 1476442180