What is the Least Common Multiple of 31005 and 31009?

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 31005 and 31009 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31005 and 31009, than apply into the LCM equation.

GCF(31005,31009) = 1
LCM(31005,31009) = ( 31005 × 31009) / 1
LCM(31005,31009) = 961434045 / 1
LCM(31005,31009) = 961434045

Least Common Multiple (LCM) of 31005 and 31009 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31005 and 31009. First we will calculate the prime factors of 31005 and 31009.

Prime Factorization of 31005

Prime Factorization of 31009

Now multiplying the highest exponent prime factors to calculate the LCM of 31005 and 31009.

LCM(31005,31009) = 3² × 5¹ × 13¹ × 53¹ × 11¹ × 2819¹
LCM(31005,31009) = 961434045