What is the Least Common Multiple of 70643 and 70661?

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 70643 and 70661 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70643 and 70661, than apply into the LCM equation.

GCF(70643,70661) = 1
LCM(70643,70661) = ( 70643 × 70661) / 1
LCM(70643,70661) = 4991705023 / 1
LCM(70643,70661) = 4991705023

Least Common Multiple (LCM) of 70643 and 70661 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70643 and 70661. First we will calculate the prime factors of 70643 and 70661.

Prime Factorization of 70643

Prime Factorization of 70661

Now multiplying the highest exponent prime factors to calculate the LCM of 70643 and 70661.

LCM(70643,70661) = 41¹ × 1723¹ × 19¹ × 3719¹
LCM(70643,70661) = 4991705023