What is the Least Common Multiple of 760 and 778?
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 760 and 778 is 295640.
LCM(760,778) = 295640
Least Common Multiple of 760 and 778 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 760 and 778, than apply into the LCM equation.
GCF(760,778) = 2
LCM(760,778) = ( 760 × 778) / 2
LCM(760,778) = 591280 / 2
LCM(760,778) = 295640
Least Common Multiple (LCM) of 760 and 778 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 760 and 778. First we will calculate the prime factors of 760 and 778.
Prime Factorization of 760
Prime factors of 760 are 2, 5, 19. Prime factorization of 760 in exponential form is:
760 = 23 × 51 × 191
Prime Factorization of 778
Prime factors of 778 are 2, 389. Prime factorization of 778 in exponential form is:
778 = 21 × 3891
Now multiplying the highest exponent prime factors to calculate the LCM of 760 and 778.
LCM(760,778) = 23 × 51 × 191 × 3891
LCM(760,778) = 295640
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