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What is the Least Common Multiple of 64505 and 64521?

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 64505 and 64521 is 4161927105.

LCM(64505,64521) = 4161927105

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Least Common Multiple of 64505 and 64521 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64505 and 64521, than apply into the LCM equation.

GCF(64505,64521) = 1
LCM(64505,64521) = ( 64505 × 64521) / 1
LCM(64505,64521) = 4161927105 / 1
LCM(64505,64521) = 4161927105

Least Common Multiple (LCM) of 64505 and 64521 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64505 and 64521. First we will calculate the prime factors of 64505 and 64521.

Prime Factorization of 64505

Prime factors of 64505 are 5, 7, 19, 97. Prime factorization of 64505 in exponential form is:

64505 = 51 × 71 × 191 × 971

Prime Factorization of 64521

Prime factors of 64521 are 3, 67, 107. Prime factorization of 64521 in exponential form is:

64521 = 32 × 671 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 64505 and 64521.

LCM(64505,64521) = 51 × 71 × 191 × 971 × 32 × 671 × 1071
LCM(64505,64521) = 4161927105