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What is the Least Common Multiple of 67623 and 67643?

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 67623 and 67643 is 4574222589.

LCM(67623,67643) = 4574222589

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Least Common Multiple of 67623 and 67643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67623 and 67643, than apply into the LCM equation.

GCF(67623,67643) = 1
LCM(67623,67643) = ( 67623 × 67643) / 1
LCM(67623,67643) = 4574222589 / 1
LCM(67623,67643) = 4574222589

Least Common Multiple (LCM) of 67623 and 67643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67623 and 67643. First we will calculate the prime factors of 67623 and 67643.

Prime Factorization of 67623

Prime factors of 67623 are 3, 22541. Prime factorization of 67623 in exponential form is:

67623 = 31 × 225411

Prime Factorization of 67643

Prime factors of 67643 are 17, 23, 173. Prime factorization of 67643 in exponential form is:

67643 = 171 × 231 × 1731

Now multiplying the highest exponent prime factors to calculate the LCM of 67623 and 67643.

LCM(67623,67643) = 31 × 225411 × 171 × 231 × 1731
LCM(67623,67643) = 4574222589