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What is the Least Common Multiple of 2721 and 2728?

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 2721 and 2728 is 7422888.

LCM(2721,2728) = 7422888

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Least Common Multiple of 2721 and 2728 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2721 and 2728, than apply into the LCM equation.

GCF(2721,2728) = 1
LCM(2721,2728) = ( 2721 × 2728) / 1
LCM(2721,2728) = 7422888 / 1
LCM(2721,2728) = 7422888

Least Common Multiple (LCM) of 2721 and 2728 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2721 and 2728. First we will calculate the prime factors of 2721 and 2728.

Prime Factorization of 2721

Prime factors of 2721 are 3, 907. Prime factorization of 2721 in exponential form is:

2721 = 31 × 9071

Prime Factorization of 2728

Prime factors of 2728 are 2, 11, 31. Prime factorization of 2728 in exponential form is:

2728 = 23 × 111 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 2721 and 2728.

LCM(2721,2728) = 31 × 9071 × 23 × 111 × 311
LCM(2721,2728) = 7422888