What is the Least Common Multiple of 77770 and 77775?

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 77770 and 77775 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77770 and 77775, than apply into the LCM equation.

GCF(77770,77775) = 5
LCM(77770,77775) = ( 77770 × 77775) / 5
LCM(77770,77775) = 6048561750 / 5
LCM(77770,77775) = 1209712350

Least Common Multiple (LCM) of 77770 and 77775 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77770 and 77775. First we will calculate the prime factors of 77770 and 77775.

Prime Factorization of 77770

Prime Factorization of 77775

Now multiplying the highest exponent prime factors to calculate the LCM of 77770 and 77775.

LCM(77770,77775) = 2¹ × 5² × 7¹ × 11¹ × 101¹ × 3¹ × 17¹ × 61¹
LCM(77770,77775) = 1209712350