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What is the Least Common Multiple of 80400 and 80419?

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 80400 and 80419 is 6465687600.

LCM(80400,80419) = 6465687600

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Least Common Multiple of 80400 and 80419 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80400 and 80419, than apply into the LCM equation.

GCF(80400,80419) = 1
LCM(80400,80419) = ( 80400 × 80419) / 1
LCM(80400,80419) = 6465687600 / 1
LCM(80400,80419) = 6465687600

Least Common Multiple (LCM) of 80400 and 80419 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80400 and 80419. First we will calculate the prime factors of 80400 and 80419.

Prime Factorization of 80400

Prime factors of 80400 are 2, 3, 5, 67. Prime factorization of 80400 in exponential form is:

80400 = 24 × 31 × 52 × 671

Prime Factorization of 80419

Prime factors of 80419 are 137, 587. Prime factorization of 80419 in exponential form is:

80419 = 1371 × 5871

Now multiplying the highest exponent prime factors to calculate the LCM of 80400 and 80419.

LCM(80400,80419) = 24 × 31 × 52 × 671 × 1371 × 5871
LCM(80400,80419) = 6465687600