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What is the Least Common Multiple of 80645 and 80649?

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 80645 and 80649 is 6503938605.

LCM(80645,80649) = 6503938605

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Least Common Multiple of 80645 and 80649 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80645 and 80649, than apply into the LCM equation.

GCF(80645,80649) = 1
LCM(80645,80649) = ( 80645 × 80649) / 1
LCM(80645,80649) = 6503938605 / 1
LCM(80645,80649) = 6503938605

Least Common Multiple (LCM) of 80645 and 80649 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80645 and 80649. First we will calculate the prime factors of 80645 and 80649.

Prime Factorization of 80645

Prime factors of 80645 are 5, 127. Prime factorization of 80645 in exponential form is:

80645 = 51 × 1272

Prime Factorization of 80649

Prime factors of 80649 are 3, 29, 103. Prime factorization of 80649 in exponential form is:

80649 = 33 × 291 × 1031

Now multiplying the highest exponent prime factors to calculate the LCM of 80645 and 80649.

LCM(80645,80649) = 51 × 1272 × 33 × 291 × 1031
LCM(80645,80649) = 6503938605