What is the Least Common Multiple of 1455 and 1469?

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 1455 and 1469 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1455 and 1469, than apply into the LCM equation.

GCF(1455,1469) = 1
LCM(1455,1469) = ( 1455 × 1469) / 1
LCM(1455,1469) = 2137395 / 1
LCM(1455,1469) = 2137395

Least Common Multiple (LCM) of 1455 and 1469 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1455 and 1469. First we will calculate the prime factors of 1455 and 1469.

Prime Factorization of 1455

Prime Factorization of 1469

Now multiplying the highest exponent prime factors to calculate the LCM of 1455 and 1469.

LCM(1455,1469) = 3¹ × 5¹ × 97¹ × 13¹ × 113¹
LCM(1455,1469) = 2137395