问题


There is a single choice question about elementary mathematics. Answer the question by replying A, B, C or D.
Question: What is the least common multiple of 4 and 10?
A. 14
B. 20
C. 40
D. 60
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

B. 20
B
deepseekr1

The least common multiple (LCM) of 4 and 10 is the smallest number divisible by both. Listing multiples of 4 (4, 8, 12, 16, **20**, ...) and 10 (10, **20**, 30, ...), the smallest common multiple is 20. Using prime factorization, 4 = 2² and 10 = 2 × 5. The LCM combines the highest powers of all primes: 2² × 5 = 20. Among the options, **B (20)** is correct.

Answer: B
B
gpto1 B B
GPT-4o B. 20 B
llama3.1-70B-Instruct

B
B
llama3.1-405B-Instruct

B. 20
B
DeepSeek-Coder-V2 B. 20 B
Qwen2-72B-Instruct B. 20 B
baichuan4 B. 20 B
doubao B

The multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40,...

The multiples of 10 are: 10, 20, 30, 40,...

The least common multiple of 4 and 10 is 20.
B
minimax C. 40 B
kimi To find the least common multiple (LCM) of 4 and 10, we can list the multiples of each number until we find the smallest number that appears in both lists:

Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, ...
Multiples of 10: 10, 20, 30, 40, 50, 60, ...

The smallest number that appears in both lists is 20.

Answer: B. 20
B
wenxinyiyan B B
zhipu B. 20

The least common multiple (LCM) of 4 and 10 is 20. The LCM is the smallest number that is a multiple of both 4 and 10. Here's a brief calculation:
- Multiples of 4: 4, 8, 12, 16, 20, ...
- Multiples of 10: 10, 20, 30, ...

The smallest common multiple in both lists is 20. Therefore, the answer is B. 20.
B
gpto1 B B
deepseekv3 To find the least common multiple (LCM) of 4 and 10, follow these steps:

1. **Find the prime factors of each number:**
- 4 = 2 × 2
- 10 = 2 × 5

2. **Identify the highest power of each prime factor:**
- The prime factors involved are 2 and 5.
- The highest power of 2 is \(2^2\) (from 4).
- The highest power of 5 is \(5^1\) (from 10).

3. **Calculate the LCM by multiplying the highest powers of all prime factors:**
\[
\text{LCM} = 2^2 × 5^1 = 4 × 5 = 20
\]

Thus, the least common multiple of 4 and 10 is **20**.

**Answer:** B. 20
B