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What is the Least Common Multiple of 70605 and 70617?

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 70605 and 70617 is 1661971095.

LCM(70605,70617) = 1661971095

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Least Common Multiple of 70605 and 70617 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70605 and 70617, than apply into the LCM equation.

GCF(70605,70617) = 3
LCM(70605,70617) = ( 70605 × 70617) / 3
LCM(70605,70617) = 4985913285 / 3
LCM(70605,70617) = 1661971095

Least Common Multiple (LCM) of 70605 and 70617 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70605 and 70617. First we will calculate the prime factors of 70605 and 70617.

Prime Factorization of 70605

Prime factors of 70605 are 3, 5, 523. Prime factorization of 70605 in exponential form is:

70605 = 33 × 51 × 5231

Prime Factorization of 70617

Prime factors of 70617 are 3, 23539. Prime factorization of 70617 in exponential form is:

70617 = 31 × 235391

Now multiplying the highest exponent prime factors to calculate the LCM of 70605 and 70617.

LCM(70605,70617) = 33 × 51 × 5231 × 235391
LCM(70605,70617) = 1661971095