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What is the Least Common Multiple of 15431 and 15450?

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 15431 and 15450 is 238408950.

LCM(15431,15450) = 238408950

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Least Common Multiple of 15431 and 15450 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15431 and 15450, than apply into the LCM equation.

GCF(15431,15450) = 1
LCM(15431,15450) = ( 15431 × 15450) / 1
LCM(15431,15450) = 238408950 / 1
LCM(15431,15450) = 238408950

Least Common Multiple (LCM) of 15431 and 15450 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15431 and 15450. First we will calculate the prime factors of 15431 and 15450.

Prime Factorization of 15431

Prime factors of 15431 are 13, 1187. Prime factorization of 15431 in exponential form is:

15431 = 131 × 11871

Prime Factorization of 15450

Prime factors of 15450 are 2, 3, 5, 103. Prime factorization of 15450 in exponential form is:

15450 = 21 × 31 × 52 × 1031

Now multiplying the highest exponent prime factors to calculate the LCM of 15431 and 15450.

LCM(15431,15450) = 131 × 11871 × 21 × 31 × 52 × 1031
LCM(15431,15450) = 238408950