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What is the Least Common Multiple of 3651 and 3670?

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 3651 and 3670 is 13399170.

LCM(3651,3670) = 13399170

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Least Common Multiple of 3651 and 3670 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3651 and 3670, than apply into the LCM equation.

GCF(3651,3670) = 1
LCM(3651,3670) = ( 3651 × 3670) / 1
LCM(3651,3670) = 13399170 / 1
LCM(3651,3670) = 13399170

Least Common Multiple (LCM) of 3651 and 3670 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3651 and 3670. First we will calculate the prime factors of 3651 and 3670.

Prime Factorization of 3651

Prime factors of 3651 are 3, 1217. Prime factorization of 3651 in exponential form is:

3651 = 31 × 12171

Prime Factorization of 3670

Prime factors of 3670 are 2, 5, 367. Prime factorization of 3670 in exponential form is:

3670 = 21 × 51 × 3671

Now multiplying the highest exponent prime factors to calculate the LCM of 3651 and 3670.

LCM(3651,3670) = 31 × 12171 × 21 × 51 × 3671
LCM(3651,3670) = 13399170