What is the Least Common Multiple of 90490 and 90505?

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 90490 and 90505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90490 and 90505, than apply into the LCM equation.

GCF(90490,90505) = 5
LCM(90490,90505) = ( 90490 × 90505) / 5
LCM(90490,90505) = 8189797450 / 5
LCM(90490,90505) = 1637959490

Least Common Multiple (LCM) of 90490 and 90505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90490 and 90505. First we will calculate the prime factors of 90490 and 90505.

Prime Factorization of 90490

Prime Factorization of 90505

Now multiplying the highest exponent prime factors to calculate the LCM of 90490 and 90505.

LCM(90490,90505) = 2¹ × 5¹ × 9049¹ × 23¹ × 787¹
LCM(90490,90505) = 1637959490