What is the Least Common Multiple of 749 and 763?
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 763 is 81641.
LCM(749,763) = 81641
Least Common Multiple of 749 and 763 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 763, than apply into the LCM equation.
GCF(749,763) = 7
LCM(749,763) = ( 749 × 763) / 7
LCM(749,763) = 571487 / 7
LCM(749,763) = 81641
Least Common Multiple (LCM) of 749 and 763 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 749 and 763. First we will calculate the prime factors of 749 and 763.
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 763
Prime factors of 763 are 7, 109. Prime factorization of 763 in exponential form is:
763 = 71 × 1091
Now multiplying the highest exponent prime factors to calculate the LCM of 749 and 763.
LCM(749,763) = 71 × 1071 × 1091
LCM(749,763) = 81641
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