What is the Least Common Multiple of 620 and 633?
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 620 and 633 is 392460.
LCM(620,633) = 392460
Least Common Multiple of 620 and 633 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 620 and 633, than apply into the LCM equation.
GCF(620,633) = 1
LCM(620,633) = ( 620 × 633) / 1
LCM(620,633) = 392460 / 1
LCM(620,633) = 392460
Least Common Multiple (LCM) of 620 and 633 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 620 and 633. First we will calculate the prime factors of 620 and 633.
Prime Factorization of 620
Prime factors of 620 are 2, 5, 31. Prime factorization of 620 in exponential form is:
620 = 22 × 51 × 311
Prime Factorization of 633
Prime factors of 633 are 3, 211. Prime factorization of 633 in exponential form is:
633 = 31 × 2111
Now multiplying the highest exponent prime factors to calculate the LCM of 620 and 633.
LCM(620,633) = 22 × 51 × 311 × 31 × 2111
LCM(620,633) = 392460
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