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What is the Least Common Multiple of 32640 and 32651?

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 32640 and 32651 is 1065728640.

LCM(32640,32651) = 1065728640

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Least Common Multiple of 32640 and 32651 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 32640 and 32651, than apply into the LCM equation.

GCF(32640,32651) = 1
LCM(32640,32651) = ( 32640 × 32651) / 1
LCM(32640,32651) = 1065728640 / 1
LCM(32640,32651) = 1065728640

Least Common Multiple (LCM) of 32640 and 32651 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 32640 and 32651. First we will calculate the prime factors of 32640 and 32651.

Prime Factorization of 32640

Prime factors of 32640 are 2, 3, 5, 17. Prime factorization of 32640 in exponential form is:

32640 = 27 × 31 × 51 × 171

Prime Factorization of 32651

Prime factors of 32651 are 103, 317. Prime factorization of 32651 in exponential form is:

32651 = 1031 × 3171

Now multiplying the highest exponent prime factors to calculate the LCM of 32640 and 32651.

LCM(32640,32651) = 27 × 31 × 51 × 171 × 1031 × 3171
LCM(32640,32651) = 1065728640