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What is the Least Common Multiple of 770 and 776?

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 770 and 776 is 298760.

LCM(770,776) = 298760

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Least Common Multiple of 770 and 776 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 770 and 776, than apply into the LCM equation.

GCF(770,776) = 2
LCM(770,776) = ( 770 × 776) / 2
LCM(770,776) = 597520 / 2
LCM(770,776) = 298760

Least Common Multiple (LCM) of 770 and 776 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 770 and 776. First we will calculate the prime factors of 770 and 776.

Prime Factorization of 770

Prime factors of 770 are 2, 5, 7, 11. Prime factorization of 770 in exponential form is:

770 = 21 × 51 × 71 × 111

Prime Factorization of 776

Prime factors of 776 are 2, 97. Prime factorization of 776 in exponential form is:

776 = 23 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 770 and 776.

LCM(770,776) = 23 × 51 × 71 × 111 × 971
LCM(770,776) = 298760