What is the Least Common Multiple of 31402 and 31421?

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 31402 and 31421 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31402 and 31421, than apply into the LCM equation.

GCF(31402,31421) = 1
LCM(31402,31421) = ( 31402 × 31421) / 1
LCM(31402,31421) = 986682242 / 1
LCM(31402,31421) = 986682242

Least Common Multiple (LCM) of 31402 and 31421 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31402 and 31421. First we will calculate the prime factors of 31402 and 31421.

Prime Factorization of 31402

Prime Factorization of 31421

Now multiplying the highest exponent prime factors to calculate the LCM of 31402 and 31421.

LCM(31402,31421) = 2¹ × 7¹ × 2243¹ × 13¹ × 2417¹
LCM(31402,31421) = 986682242