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Least common multiple of 10 and 15?
The least common multiple is the smallest number that is multiple of two or more numbers. 10: 10, 20, 30 15: 15, 30 The LCM for 10 and 15 is 30.
What number can 18 and 15 go into?
any multiple of 90
What number is multiple of 3 and not a square number?
6, 12, 15 and lots more.
What is the least common multiple of 15?
The least common multiple (LCM) of a set of numbers is the smallest multiple that is evenly divisible by all of the numbers in the set. To find the LCM of 15, you can factorize 15 into its prime factors, which are 3 and 5. The LCM of 15 would then be the product of these prime factors, which is 3 x 5 = 15. Therefore, the least common multiple of 15 is 15.
What is the largest number less than 1000 which is odd leaves a remainder of 2 when divided by 3 and a remainder of 4 when divided by 5?
989. If there is a remainder of 2 when divided by 3, the number is one less than a multiple of 3. If there is a remainder of 4 when divided by 5, the number is one less than a multiple of 5. Thus the number required is one less than a multiple of the lowest common multiple of 3 and 5 (that is 15). So what is needed is an even multiple of 15 less than or equal to 1000: 1000 ÷ 15 = 662/3 Thus the highest even multiple of 15 not greater than 1000 is 66 x 15 = 990, and the required number is 989.
