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What is the Least Common Multiple of 42801 and 42807?

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 42801 and 42807 is 610727469.

LCM(42801,42807) = 610727469

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Least Common Multiple of 42801 and 42807 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42801 and 42807, than apply into the LCM equation.

GCF(42801,42807) = 3
LCM(42801,42807) = ( 42801 × 42807) / 3
LCM(42801,42807) = 1832182407 / 3
LCM(42801,42807) = 610727469

Least Common Multiple (LCM) of 42801 and 42807 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42801 and 42807. First we will calculate the prime factors of 42801 and 42807.

Prime Factorization of 42801

Prime factors of 42801 are 3, 11, 1297. Prime factorization of 42801 in exponential form is:

42801 = 31 × 111 × 12971

Prime Factorization of 42807

Prime factors of 42807 are 3, 19, 751. Prime factorization of 42807 in exponential form is:

42807 = 31 × 191 × 7511

Now multiplying the highest exponent prime factors to calculate the LCM of 42801 and 42807.

LCM(42801,42807) = 31 × 111 × 12971 × 191 × 7511
LCM(42801,42807) = 610727469