What is the Least Common Multiple of 972 and 977?
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 972 and 977 is 949644.
LCM(972,977) = 949644
Least Common Multiple of 972 and 977 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 972 and 977, than apply into the LCM equation.
GCF(972,977) = 1
LCM(972,977) = ( 972 × 977) / 1
LCM(972,977) = 949644 / 1
LCM(972,977) = 949644
Least Common Multiple (LCM) of 972 and 977 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 972 and 977. First we will calculate the prime factors of 972 and 977.
Prime Factorization of 972
Prime factors of 972 are 2, 3. Prime factorization of 972 in exponential form is:
972 = 22 × 35
Prime Factorization of 977
Prime factors of 977 are 977. Prime factorization of 977 in exponential form is:
977 = 9771
Now multiplying the highest exponent prime factors to calculate the LCM of 972 and 977.
LCM(972,977) = 22 × 35 × 9771
LCM(972,977) = 949644
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