LCD(42, 54) = 378
42 as that number is the smallest number that both 3 and 14 will go into.
The least common factor of 30 and 42 is the smallest number that is a factor of both of them and is 1.However, I suspect that you mean either:What is the highest common factor of 30 and 42?ie what is the highest number that is a factor of both 30 and 42: hcf = 6;What is the lowest common multiple of 30 and 42?ie that is the smallest number that is a multiple of both 30 and 42 lcm = 210.
The smallest number that can be divided by both 30 and 42 is 210.
The least common multiple (LCM) of two numbers is the smallest positive rational number (not zero) that is a multiple of both. Multiples of 14 are: 14, 28, 42, 56, etc. Multiples of 21 are: 21, 42, 63,etc. The least common multiple of 14 and21 is the smallest one of those: 42
arithmetic and number theory, the least common multiple(also called the lowest common multiple or smallest common multiple) of two integers a and b, usually denoted by LCM(a, b), is the smallest positive integer that is a multiple of both a and b.LCM(63,42)=126
1,428
42
42.
294
42 is the lowest common multiple of 3, 6, and 7.
42
The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 21 and 42 is 42.The least common multiple of the numbers 42 and 21 is 42.