What is the Least Common Multiple of 749 and 765?
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 749 and 765 is 572985.
LCM(749,765) = 572985
Least Common Multiple of 749 and 765 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 749 and 765, than apply into the LCM equation.
GCF(749,765) = 1
LCM(749,765) = ( 749 × 765) / 1
LCM(749,765) = 572985 / 1
LCM(749,765) = 572985
Least Common Multiple (LCM) of 749 and 765 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 749 and 765. First we will calculate the prime factors of 749 and 765.
Prime Factorization of 749
Prime factors of 749 are 7, 107. Prime factorization of 749 in exponential form is:
749 = 71 × 1071
Prime Factorization of 765
Prime factors of 765 are 3, 5, 17. Prime factorization of 765 in exponential form is:
765 = 32 × 51 × 171
Now multiplying the highest exponent prime factors to calculate the LCM of 749 and 765.
LCM(749,765) = 71 × 1071 × 32 × 51 × 171
LCM(749,765) = 572985
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