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What is the Least Common Multiple of 15747 and 15755?

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 15747 and 15755 is 248093985.

LCM(15747,15755) = 248093985

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Least Common Multiple of 15747 and 15755 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15747 and 15755, than apply into the LCM equation.

GCF(15747,15755) = 1
LCM(15747,15755) = ( 15747 × 15755) / 1
LCM(15747,15755) = 248093985 / 1
LCM(15747,15755) = 248093985

Least Common Multiple (LCM) of 15747 and 15755 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15747 and 15755. First we will calculate the prime factors of 15747 and 15755.

Prime Factorization of 15747

Prime factors of 15747 are 3, 29, 181. Prime factorization of 15747 in exponential form is:

15747 = 31 × 291 × 1811

Prime Factorization of 15755

Prime factors of 15755 are 5, 23, 137. Prime factorization of 15755 in exponential form is:

15755 = 51 × 231 × 1371

Now multiplying the highest exponent prime factors to calculate the LCM of 15747 and 15755.

LCM(15747,15755) = 31 × 291 × 1811 × 51 × 231 × 1371
LCM(15747,15755) = 248093985