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What is the Least Common Multiple of 6462 and 6478?

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 6462 and 6478 is 20930418.

LCM(6462,6478) = 20930418

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Least Common Multiple of 6462 and 6478 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6462 and 6478, than apply into the LCM equation.

GCF(6462,6478) = 2
LCM(6462,6478) = ( 6462 × 6478) / 2
LCM(6462,6478) = 41860836 / 2
LCM(6462,6478) = 20930418

Least Common Multiple (LCM) of 6462 and 6478 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6462 and 6478. First we will calculate the prime factors of 6462 and 6478.

Prime Factorization of 6462

Prime factors of 6462 are 2, 3, 359. Prime factorization of 6462 in exponential form is:

6462 = 21 × 32 × 3591

Prime Factorization of 6478

Prime factors of 6478 are 2, 41, 79. Prime factorization of 6478 in exponential form is:

6478 = 21 × 411 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 6462 and 6478.

LCM(6462,6478) = 21 × 32 × 3591 × 411 × 791
LCM(6462,6478) = 20930418