What is the Least Common Multiple of 75421 and 75431?

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 75421 and 75431 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75421 and 75431, than apply into the LCM equation.

GCF(75421,75431) = 1
LCM(75421,75431) = ( 75421 × 75431) / 1
LCM(75421,75431) = 5689081451 / 1
LCM(75421,75431) = 5689081451

Least Common Multiple (LCM) of 75421 and 75431 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75421 and 75431. First we will calculate the prime factors of 75421 and 75431.

Prime Factorization of 75421

Prime Factorization of 75431

Now multiplying the highest exponent prime factors to calculate the LCM of 75421 and 75431.

LCM(75421,75431) = 199¹ × 379¹ × 75431¹
LCM(75421,75431) = 5689081451