Home › CAASPP Mathematics › Mathematics › Foundations › Using the listing multiples method, what is the …
Using the listing multiples method, what is the least common multiple of 15 and 20?
A30
B100
C60
D300
Answer & Solution
Correct answer: C. 60
1. List several multiples of 15: 15, 30, 45, 60, 75, and so on.
2. List several multiples of 20: 20, 40, 60, 80, and so on.
3. The smallest number appearing on both lists is 60.
4. So the least common multiple of 15 and 20 is 60.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.1 Introduction to Whole Numbers_
Related questions
Simplify by combining like terms: 3x squared + 7x + 9 + 7x squared + 9x + 8.Is zero a positive number or a negative number?Add: 37 + (-53).Simplify: 30 divided by 5, plus 10 times (3 minus 2).The saying "Please Excuse My Dear Aunt Sally" helps students remember what?List the multiples of 9 and the multiples of 12. What is the first number to appear on botFind the prime factorization of 80.Check 4,962 with the divisibility tests for 2, 3, 5, 6, and 10. Which complete list of tho