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What is the Least Common Multiple of 31603 and 31608?

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 (LCM) of 31603 and 31608 is 998907624.

LCM(31603,31608) = 998907624

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Least Common Multiple of 31603 and 31608 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31603 and 31608, than apply into the LCM equation.

GCF(31603,31608) = 1
LCM(31603,31608) = ( 31603 × 31608) / 1
LCM(31603,31608) = 998907624 / 1
LCM(31603,31608) = 998907624

Least Common Multiple (LCM) of 31603 and 31608 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31603 and 31608. First we will calculate the prime factors of 31603 and 31608.

Prime Factorization of 31603

Prime factors of 31603 are 11, 13, 17. Prime factorization of 31603 in exponential form is:

31603 = 111 × 132 × 171

Prime Factorization of 31608

Prime factors of 31608 are 2, 3, 439. Prime factorization of 31608 in exponential form is:

31608 = 23 × 32 × 4391

Now multiplying the highest exponent prime factors to calculate the LCM of 31603 and 31608.

LCM(31603,31608) = 111 × 132 × 171 × 23 × 32 × 4391
LCM(31603,31608) = 998907624