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What is the Least Common Multiple of 90702 and 90721?

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 90702 and 90721 is 8228576142.

LCM(90702,90721) = 8228576142

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Least Common Multiple of 90702 and 90721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90702 and 90721, than apply into the LCM equation.

GCF(90702,90721) = 1
LCM(90702,90721) = ( 90702 × 90721) / 1
LCM(90702,90721) = 8228576142 / 1
LCM(90702,90721) = 8228576142

Least Common Multiple (LCM) of 90702 and 90721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90702 and 90721. First we will calculate the prime factors of 90702 and 90721.

Prime Factorization of 90702

Prime factors of 90702 are 2, 3, 5039. Prime factorization of 90702 in exponential form is:

90702 = 21 × 32 × 50391

Prime Factorization of 90721

Prime factors of 90721 are 257, 353. Prime factorization of 90721 in exponential form is:

90721 = 2571 × 3531

Now multiplying the highest exponent prime factors to calculate the LCM of 90702 and 90721.

LCM(90702,90721) = 21 × 32 × 50391 × 2571 × 3531
LCM(90702,90721) = 8228576142