What is the Least Common Multiple of 554 and 560?
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 554 and 560 is 155120.
LCM(554,560) = 155120
Least Common Multiple of 554 and 560 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 554 and 560, than apply into the LCM equation.
GCF(554,560) = 2
LCM(554,560) = ( 554 × 560) / 2
LCM(554,560) = 310240 / 2
LCM(554,560) = 155120
Least Common Multiple (LCM) of 554 and 560 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 554 and 560. First we will calculate the prime factors of 554 and 560.
Prime Factorization of 554
Prime factors of 554 are 2, 277. Prime factorization of 554 in exponential form is:
554 = 21 × 2771
Prime Factorization of 560
Prime factors of 560 are 2, 5, 7. Prime factorization of 560 in exponential form is:
560 = 24 × 51 × 71
Now multiplying the highest exponent prime factors to calculate the LCM of 554 and 560.
LCM(554,560) = 24 × 2771 × 51 × 71
LCM(554,560) = 155120
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