GCF and LCM Calculator Logo

What is the Least Common Multiple of 1533 and 1539?

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 1533 and 1539 is 786429.

LCM(1533,1539) = 786429

LCM Calculator and
and

Least Common Multiple of 1533 and 1539 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1533 and 1539, than apply into the LCM equation.

GCF(1533,1539) = 3
LCM(1533,1539) = ( 1533 × 1539) / 3
LCM(1533,1539) = 2359287 / 3
LCM(1533,1539) = 786429

Least Common Multiple (LCM) of 1533 and 1539 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1533 and 1539. First we will calculate the prime factors of 1533 and 1539.

Prime Factorization of 1533

Prime factors of 1533 are 3, 7, 73. Prime factorization of 1533 in exponential form is:

1533 = 31 × 71 × 731

Prime Factorization of 1539

Prime factors of 1539 are 3, 19. Prime factorization of 1539 in exponential form is:

1539 = 34 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 1533 and 1539.

LCM(1533,1539) = 34 × 71 × 731 × 191
LCM(1533,1539) = 786429