What is the Least Common Multiple of 942 and 947?
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 942 and 947 is 892074.
LCM(942,947) = 892074
Least Common Multiple of 942 and 947 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 942 and 947, than apply into the LCM equation.
GCF(942,947) = 1
LCM(942,947) = ( 942 × 947) / 1
LCM(942,947) = 892074 / 1
LCM(942,947) = 892074
Least Common Multiple (LCM) of 942 and 947 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 942 and 947. First we will calculate the prime factors of 942 and 947.
Prime Factorization of 942
Prime factors of 942 are 2, 3, 157. Prime factorization of 942 in exponential form is:
942 = 21 × 31 × 1571
Prime Factorization of 947
Prime factors of 947 are 947. Prime factorization of 947 in exponential form is:
947 = 9471
Now multiplying the highest exponent prime factors to calculate the LCM of 942 and 947.
LCM(942,947) = 21 × 31 × 1571 × 9471
LCM(942,947) = 892074
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