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What is the Least Common Multiple of 735 and 745?

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 735 and 745 is 109515.

LCM(735,745) = 109515

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Least Common Multiple of 735 and 745 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 735 and 745, than apply into the LCM equation.

GCF(735,745) = 5
LCM(735,745) = ( 735 × 745) / 5
LCM(735,745) = 547575 / 5
LCM(735,745) = 109515

Least Common Multiple (LCM) of 735 and 745 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 735 and 745. First we will calculate the prime factors of 735 and 745.

Prime Factorization of 735

Prime factors of 735 are 3, 5, 7. Prime factorization of 735 in exponential form is:

735 = 31 × 51 × 72

Prime Factorization of 745

Prime factors of 745 are 5, 149. Prime factorization of 745 in exponential form is:

745 = 51 × 1491

Now multiplying the highest exponent prime factors to calculate the LCM of 735 and 745.

LCM(735,745) = 31 × 51 × 72 × 1491
LCM(735,745) = 109515