What is the Least Common Multiple of 42490 and 42505?

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 42490 and 42505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42490 and 42505, than apply into the LCM equation.

GCF(42490,42505) = 5
LCM(42490,42505) = ( 42490 × 42505) / 5
LCM(42490,42505) = 1806037450 / 5
LCM(42490,42505) = 361207490

Least Common Multiple (LCM) of 42490 and 42505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42490 and 42505. First we will calculate the prime factors of 42490 and 42505.

Prime Factorization of 42490

Prime Factorization of 42505

Now multiplying the highest exponent prime factors to calculate the LCM of 42490 and 42505.

LCM(42490,42505) = 2¹ × 5¹ × 7¹ × 607¹ × 8501¹
LCM(42490,42505) = 361207490