The LCM of two numbers is one of the numbers when one of the numbers is a multiple of the other. The LCM of two numbers is the product of the numbers when they are relatively prime. In all other cases (like consecutive even numbers that aren't 2 and 4) the LCM is as you describe.
LCM is 20, which is the multiple of the highest power of prime factors in the given numbers (22 x 5).The LCM is 20.
There can only be one LEAST Common Multiple. Since the three numbers are co-prime, their LCM is the same as their product, that is, LCM(4, 37, 69) = 4 * 37 * 69 = 10,212 [Two numbers are co-prime if they have no factor in common. The numbers, themselves, need not be prime.]
LCM is 28, which is the multiple of the highest power of prime factors in the given numbers (22 x 7).
That's a false statement. Both 16 and 64 have one prime factor. 16 can't be the LCM of two prime numbers and 64 can't be the product. If you leave out the word prime, you can use 16 and 4.
If the GCF of two numbers is 1, their LCM will be their product. Such numbers are called relatively prime, or co-prime. Any two prime numbers (like 3 and 5) will be that way, but the numbers don't have to be prime (like 4 and 9).
If the GCF of two numbers is 1, their LCM will be their product. Such numbers are called relatively prime, or co-prime. Any two prime numbers (like 3 and 5) will be that way, but the numbers don't have to be prime (like 4 and 9).
To find the LCM of two numbers you first need to split them into their prime factors: 6 = 2x3 4 = 2x2 The next step is to identify any common factors and cross off the duplicates. In this case both numbers have 2 as a prime factor. That leaves us with 2, 2 and 3. Multiplying these together gives 2x2x3 = 12 And thus the LCM of 6 and 4 is 12.
2,3,5,7
The first five counting numbers are 1,2,3,4 and 5. The answer is the Lowest Common Multiple (LCM) of these five numbers. 1 is a unique number. 2,3 and 5 are prime numbers with factors of 1 and themselves. 4 has prime factors of 2 x 2 = 22 The LCM is the product of the highest power of each prime factor. The LCM of 1,2,3,4 and 5 = 1 x 22 x 3 x 5 = 60
The first four prime numbers after 875 are: 877, 881, 883, 887
The first four Mersenne prime numbers are 2, 3, 5, and 7.