What is the Least Common Multiple of 73996 and 74009?

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 73996 and 74009 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73996 and 74009, than apply into the LCM equation.

GCF(73996,74009) = 13
LCM(73996,74009) = ( 73996 × 74009) / 13
LCM(73996,74009) = 5476369964 / 13
LCM(73996,74009) = 421259228

Least Common Multiple (LCM) of 73996 and 74009 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73996 and 74009. First we will calculate the prime factors of 73996 and 74009.

Prime Factorization of 73996

Prime Factorization of 74009

Now multiplying the highest exponent prime factors to calculate the LCM of 73996 and 74009.

LCM(73996,74009) = 2² × 13¹ × 1423¹ × 5693¹
LCM(73996,74009) = 421259228