What is the Least Common Multiple of 9685 and 9690?

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 9685 and 9690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9685 and 9690, than apply into the LCM equation.

GCF(9685,9690) = 5
LCM(9685,9690) = ( 9685 × 9690) / 5
LCM(9685,9690) = 93847650 / 5
LCM(9685,9690) = 18769530

Least Common Multiple (LCM) of 9685 and 9690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9685 and 9690. First we will calculate the prime factors of 9685 and 9690.

Prime Factorization of 9685

Prime Factorization of 9690

Now multiplying the highest exponent prime factors to calculate the LCM of 9685 and 9690.

LCM(9685,9690) = 5¹ × 13¹ × 149¹ × 2¹ × 3¹ × 17¹ × 19¹
LCM(9685,9690) = 18769530