What is the Least Common Multiple of 749 and 761?
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 761 is 569989.
LCM(749,761) = 569989
Least Common Multiple of 749 and 761 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 761, than apply into the LCM equation.
GCF(749,761) = 1
LCM(749,761) = ( 749 × 761) / 1
LCM(749,761) = 569989 / 1
LCM(749,761) = 569989
Least Common Multiple (LCM) of 749 and 761 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 749 and 761. First we will calculate the prime factors of 749 and 761.
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 761
Prime factors of 761 are 761. Prime factorization of 761 in exponential form is:
761 = 7611
Now multiplying the highest exponent prime factors to calculate the LCM of 749 and 761.
LCM(749,761) = 71 × 1071 × 7611
LCM(749,761) = 569989
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