What is the Least Common Multiple of 91090 and 91105?

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 91090 and 91105 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91090 and 91105, than apply into the LCM equation.

GCF(91090,91105) = 5
LCM(91090,91105) = ( 91090 × 91105) / 5
LCM(91090,91105) = 8298754450 / 5
LCM(91090,91105) = 1659750890

Least Common Multiple (LCM) of 91090 and 91105 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91090 and 91105. First we will calculate the prime factors of 91090 and 91105.

Prime Factorization of 91090

Prime Factorization of 91105

Now multiplying the highest exponent prime factors to calculate the LCM of 91090 and 91105.

LCM(91090,91105) = 2¹ × 5¹ × 9109¹ × 7¹ × 19¹ × 137¹
LCM(91090,91105) = 1659750890