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What is the Least Common Multiple of 38454 and 38458?

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 38454 and 38458 is 739431966.

LCM(38454,38458) = 739431966

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Least Common Multiple of 38454 and 38458 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38454 and 38458, than apply into the LCM equation.

GCF(38454,38458) = 2
LCM(38454,38458) = ( 38454 × 38458) / 2
LCM(38454,38458) = 1478863932 / 2
LCM(38454,38458) = 739431966

Least Common Multiple (LCM) of 38454 and 38458 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38454 and 38458. First we will calculate the prime factors of 38454 and 38458.

Prime Factorization of 38454

Prime factors of 38454 are 2, 3, 13, 17, 29. Prime factorization of 38454 in exponential form is:

38454 = 21 × 31 × 131 × 171 × 291

Prime Factorization of 38458

Prime factors of 38458 are 2, 7, 41, 67. Prime factorization of 38458 in exponential form is:

38458 = 21 × 71 × 411 × 671

Now multiplying the highest exponent prime factors to calculate the LCM of 38454 and 38458.

LCM(38454,38458) = 21 × 31 × 131 × 171 × 291 × 71 × 411 × 671
LCM(38454,38458) = 739431966