3 x 3 x 5 = 45
2 x 5 x 5 = 50
2 x 3 x 3 x 5 x 5 = 450, the LCM
1258
It is 504
a and b have no common prime factors. Their LCM is their product.
Once you have the prime factorization, it is much easier to find the factors, the proper factors, the GCF and LCM.
2 x 25Combine the factors.2 x 2 x 5 = 20, the LCM
The first step in using primes for finding LCM is to find the factors of the given numbers. The LCM of the given numbers is the product of all the prime factors to their greatest power.Prime factors of 72 are 23 x 32Prime factors of 147 are 3 x 72The LCM of 72 and 147 is 23 x 32 x 72 = 8 x 9 x 49 = 3528
The LCM of the given three numbers using prime factorization is 25200
Prime factors of 20 are: 22 and 5 Prime factors of 250 are: 2 and 53 Multiply the highest prime numbers: 22*53 = 500 which is the LCM
The prime factors of 80 are 2,2,2,2 and 5 The prime factors of 220 are 2,2,5 and 11 To find the LCM, multiply one number by the unique prime factors of the other In this case, that is 80x11 or 220x4 =880.
Prime factors of 50 are 2 and 52 in exponents Prime factors of 98 are 2 and 72 in exponents So it follows LCM is 2*52*72 = 2450
Prime factors of 16 are: 24 Prime factors of 30 are: 2, 3 and 5 Prime factors of 84 are: 22, 3 and 7 LCM = 24*3*5*7 = 1680
Prime factors of 55 are: 5 and 11 Prime factors of 70 are: 2, 5 and 7 LCM is: 2*5*7*11 = 770