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What is the Least Common Multiple of 495 and 505?

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 495 and 505 is 49995.

LCM(495,505) = 49995

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Least Common Multiple of 495 and 505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 495 and 505, than apply into the LCM equation.

GCF(495,505) = 5
LCM(495,505) = ( 495 × 505) / 5
LCM(495,505) = 249975 / 5
LCM(495,505) = 49995

Least Common Multiple (LCM) of 495 and 505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 495 and 505. First we will calculate the prime factors of 495 and 505.

Prime Factorization of 495

Prime factors of 495 are 3, 5, 11. Prime factorization of 495 in exponential form is:

495 = 32 × 51 × 111

Prime Factorization of 505

Prime factors of 505 are 5, 101. Prime factorization of 505 in exponential form is:

505 = 51 × 1011

Now multiplying the highest exponent prime factors to calculate the LCM of 495 and 505.

LCM(495,505) = 32 × 51 × 111 × 1011
LCM(495,505) = 49995