What is the Least Common Multiple of 961 and 969?
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 961 and 969 is 931209.
LCM(961,969) = 931209
Least Common Multiple of 961 and 969 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 961 and 969, than apply into the LCM equation.
GCF(961,969) = 1
LCM(961,969) = ( 961 × 969) / 1
LCM(961,969) = 931209 / 1
LCM(961,969) = 931209
Least Common Multiple (LCM) of 961 and 969 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 961 and 969. First we will calculate the prime factors of 961 and 969.
Prime Factorization of 961
Prime factors of 961 are 31. Prime factorization of 961 in exponential form is:
961 = 312
Prime Factorization of 969
Prime factors of 969 are 3, 17, 19. Prime factorization of 969 in exponential form is:
969 = 31 × 171 × 191
Now multiplying the highest exponent prime factors to calculate the LCM of 961 and 969.
LCM(961,969) = 312 × 31 × 171 × 191
LCM(961,969) = 931209
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