What is the Least Common Multiple of 1457 and 1477?

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 of 1457 and 1477 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1457 and 1477, than apply into the LCM equation.

GCF(1457,1477) = 1
LCM(1457,1477) = ( 1457 × 1477) / 1
LCM(1457,1477) = 2151989 / 1
LCM(1457,1477) = 2151989

Least Common Multiple (LCM) of 1457 and 1477 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1457 and 1477. First we will calculate the prime factors of 1457 and 1477.

Prime Factorization of 1457

Prime Factorization of 1477

Now multiplying the highest exponent prime factors to calculate the LCM of 1457 and 1477.

LCM(1457,1477) = 31¹ × 47¹ × 7¹ × 211¹
LCM(1457,1477) = 2151989