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What is the Least Common Multiple of 64470 and 64489?

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 64470 and 64489 is 4157605830.

LCM(64470,64489) = 4157605830

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Least Common Multiple of 64470 and 64489 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64470 and 64489, than apply into the LCM equation.

GCF(64470,64489) = 1
LCM(64470,64489) = ( 64470 × 64489) / 1
LCM(64470,64489) = 4157605830 / 1
LCM(64470,64489) = 4157605830

Least Common Multiple (LCM) of 64470 and 64489 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64470 and 64489. First we will calculate the prime factors of 64470 and 64489.

Prime Factorization of 64470

Prime factors of 64470 are 2, 3, 5, 7, 307. Prime factorization of 64470 in exponential form is:

64470 = 21 × 31 × 51 × 71 × 3071

Prime Factorization of 64489

Prime factors of 64489 are 64489. Prime factorization of 64489 in exponential form is:

64489 = 644891

Now multiplying the highest exponent prime factors to calculate the LCM of 64470 and 64489.

LCM(64470,64489) = 21 × 31 × 51 × 71 × 3071 × 644891
LCM(64470,64489) = 4157605830