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What is the Least Common Multiple of 31603 and 31623?

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 31623 is 999381669.

LCM(31603,31623) = 999381669

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Least Common Multiple of 31603 and 31623 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 31623, than apply into the LCM equation.

GCF(31603,31623) = 1
LCM(31603,31623) = ( 31603 × 31623) / 1
LCM(31603,31623) = 999381669 / 1
LCM(31603,31623) = 999381669

Least Common Multiple (LCM) of 31603 and 31623 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31603 and 31623. First we will calculate the prime factors of 31603 and 31623.

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 31623

Prime factors of 31623 are 3, 83, 127. Prime factorization of 31623 in exponential form is:

31623 = 31 × 831 × 1271

Now multiplying the highest exponent prime factors to calculate the LCM of 31603 and 31623.

LCM(31603,31623) = 111 × 132 × 171 × 31 × 831 × 1271
LCM(31603,31623) = 999381669