What is the Least Common Multiple of 7438 and 7451?

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 7438 and 7451 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7438 and 7451, than apply into the LCM equation.

GCF(7438,7451) = 1
LCM(7438,7451) = ( 7438 × 7451) / 1
LCM(7438,7451) = 55420538 / 1
LCM(7438,7451) = 55420538

Least Common Multiple (LCM) of 7438 and 7451 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7438 and 7451. First we will calculate the prime factors of 7438 and 7451.

Prime Factorization of 7438

Prime Factorization of 7451

Now multiplying the highest exponent prime factors to calculate the LCM of 7438 and 7451.

LCM(7438,7451) = 2¹ × 3719¹ × 7451¹
LCM(7438,7451) = 55420538