What is the Least Common Multiple of 1442 and 1457?

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 1442 and 1457 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1442 and 1457, than apply into the LCM equation.

GCF(1442,1457) = 1
LCM(1442,1457) = ( 1442 × 1457) / 1
LCM(1442,1457) = 2100994 / 1
LCM(1442,1457) = 2100994

Least Common Multiple (LCM) of 1442 and 1457 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1442 and 1457. First we will calculate the prime factors of 1442 and 1457.

Prime Factorization of 1442

Prime Factorization of 1457

Now multiplying the highest exponent prime factors to calculate the LCM of 1442 and 1457.

LCM(1442,1457) = 2¹ × 7¹ × 103¹ × 31¹ × 47¹
LCM(1442,1457) = 2100994