Question

Difficulty: EasyFactors, Multiples, and Primes

What is the smallest positive integer that is a multiple of both 88 and 1212?

Answer: 24

Answer

24
The smallest positive integer that is a multiple of both 88 and 1212 is their least common multiple (LCM). The multiples of 88 are 8,16,24,32,…8, 16, 24, 32, \dots and the multiples of 1212 are 12,24,36,…12, 24, 36, \dots. The smallest number that appears in both lists is 2424.

Step-by-Step Solution

1
Find the positive multiples of 88.
8,16,24,32,40,…8, 16, 24, 32, 40, \dots
We need to determine a number that is a multiple of 88.
2
Find the positive multiples of 1212.
12,24,36,48,…12, 24, 36, 48, \dots
We need the number to also be a multiple of 1212.
3
Identify the smallest common multiple from both lists.
2424
The question asks for the smallest positive integer that is a multiple of both numbers.

Key Concept

Least Common Multiple (LCM)
Estimated Time:45s
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