What is the Least Common Multiple of 42278 and 42291?

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 42278 and 42291 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42278 and 42291, than apply into the LCM equation.

GCF(42278,42291) = 1
LCM(42278,42291) = ( 42278 × 42291) / 1
LCM(42278,42291) = 1787978898 / 1
LCM(42278,42291) = 1787978898

Least Common Multiple (LCM) of 42278 and 42291 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42278 and 42291. First we will calculate the prime factors of 42278 and 42291.

Prime Factorization of 42278

Prime Factorization of 42291

Now multiplying the highest exponent prime factors to calculate the LCM of 42278 and 42291.

LCM(42278,42291) = 2¹ × 21139¹ × 3² × 37¹ × 127¹
LCM(42278,42291) = 1787978898