What is the Least Common Multiple of 64760 and 64770?
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 64760 and 64770 is 419450520.
LCM(64760,64770) = 419450520
Least Common Multiple of 64760 and 64770 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64760 and 64770, than apply into the LCM equation.
GCF(64760,64770) = 10
LCM(64760,64770) = ( 64760 × 64770) / 10
LCM(64760,64770) = 4194505200 / 10
LCM(64760,64770) = 419450520
Least Common Multiple (LCM) of 64760 and 64770 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 64760 and 64770. First we will calculate the prime factors of 64760 and 64770.
Prime Factorization of 64760
Prime factors of 64760 are 2, 5, 1619. Prime factorization of 64760 in exponential form is:
64760 = 23 × 51 × 16191
Prime Factorization of 64770
Prime factors of 64770 are 2, 3, 5, 17, 127. Prime factorization of 64770 in exponential form is:
64770 = 21 × 31 × 51 × 171 × 1271
Now multiplying the highest exponent prime factors to calculate the LCM of 64760 and 64770.
LCM(64760,64770) = 23 × 51 × 16191 × 31 × 171 × 1271
LCM(64760,64770) = 419450520
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