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What is the Least Common Multiple of 1655 and 1671?

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 1655 and 1671 is 2765505.

LCM(1655,1671) = 2765505

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Least Common Multiple of 1655 and 1671 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1655 and 1671, than apply into the LCM equation.

GCF(1655,1671) = 1
LCM(1655,1671) = ( 1655 × 1671) / 1
LCM(1655,1671) = 2765505 / 1
LCM(1655,1671) = 2765505

Least Common Multiple (LCM) of 1655 and 1671 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1655 and 1671. First we will calculate the prime factors of 1655 and 1671.

Prime Factorization of 1655

Prime factors of 1655 are 5, 331. Prime factorization of 1655 in exponential form is:

1655 = 51 × 3311

Prime Factorization of 1671

Prime factors of 1671 are 3, 557. Prime factorization of 1671 in exponential form is:

1671 = 31 × 5571

Now multiplying the highest exponent prime factors to calculate the LCM of 1655 and 1671.

LCM(1655,1671) = 51 × 3311 × 31 × 5571
LCM(1655,1671) = 2765505