What is the Least Common Multiple of 3890 and 3904?

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 3890 and 3904 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3890 and 3904, than apply into the LCM equation.

GCF(3890,3904) = 2
LCM(3890,3904) = ( 3890 × 3904) / 2
LCM(3890,3904) = 15186560 / 2
LCM(3890,3904) = 7593280

Least Common Multiple (LCM) of 3890 and 3904 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3890 and 3904. First we will calculate the prime factors of 3890 and 3904.

Prime Factorization of 3890

Prime Factorization of 3904

Now multiplying the highest exponent prime factors to calculate the LCM of 3890 and 3904.

LCM(3890,3904) = 2⁶ × 5¹ × 389¹ × 61¹
LCM(3890,3904) = 7593280