What is the Least Common Multiple of 87458 and 87478?

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 87458 and 87478 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87458 and 87478, than apply into the LCM equation.

GCF(87458,87478) = 2
LCM(87458,87478) = ( 87458 × 87478) / 2
LCM(87458,87478) = 7650650924 / 2
LCM(87458,87478) = 3825325462

Least Common Multiple (LCM) of 87458 and 87478 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87458 and 87478. First we will calculate the prime factors of 87458 and 87478.

Prime Factorization of 87458

Prime Factorization of 87478

Now multiplying the highest exponent prime factors to calculate the LCM of 87458 and 87478.

LCM(87458,87478) = 2¹ × 7¹ × 6247¹ × 191¹ × 229¹
LCM(87458,87478) = 3825325462