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What is the Least Common Multiple of 42749 and 42762?

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 42749 and 42762 is 1828032738.

LCM(42749,42762) = 1828032738

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Least Common Multiple of 42749 and 42762 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42749 and 42762, than apply into the LCM equation.

GCF(42749,42762) = 1
LCM(42749,42762) = ( 42749 × 42762) / 1
LCM(42749,42762) = 1828032738 / 1
LCM(42749,42762) = 1828032738

Least Common Multiple (LCM) of 42749 and 42762 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42749 and 42762. First we will calculate the prime factors of 42749 and 42762.

Prime Factorization of 42749

Prime factors of 42749 are 7, 31, 197. Prime factorization of 42749 in exponential form is:

42749 = 71 × 311 × 1971

Prime Factorization of 42762

Prime factors of 42762 are 2, 3, 7127. Prime factorization of 42762 in exponential form is:

42762 = 21 × 31 × 71271

Now multiplying the highest exponent prime factors to calculate the LCM of 42749 and 42762.

LCM(42749,42762) = 71 × 311 × 1971 × 21 × 31 × 71271
LCM(42749,42762) = 1828032738