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# What are the first two common multiples of 21 and 15?

Updated: 8/20/2019 Wiki User

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Q: What are the first two common multiples of 21 and 15?
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### What is the 2 common multiples of 15 and 27?

the first two common multiples of 15,27 are 135,270

15 and 30

### What are the two common multiples of 21 and 15?

Two common multiples of 21 and 15 are 105 and 315.

### What is the two common multiples of 3 and 5?

The two common multiples of three and five are: 15 and 30 ^-^

### What are the first three common multiples of 3 15?

Since 3 is a factor of 15, the first three common multiples of 3 and 15 are 15, 30, and 45.

### What are the first two common factors of 3 and 5?

Since 3 and 5 are both prime numbers, the only common factor of the two numbers is 1. Perhaps you are thinking of common multiples, the first two common multiples of the two numbers are 15 and 30.

60

75

### What are three common multiples of 15 and 20?

15 &amp; 20 have an infinite number of Common Multiples; the first three are 60, 120 and 180.

### Why is 60 the least common multiple of 12 and 15?

The multiples of 12 are 12, 24, 36, 48, 60... The multiples of 15 are 15, 30, 45, 60... 60 is the LCM of 12 and 15 because it is the first common multiple of these two numbers.

15, 30, 45

60 and 8,220