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They are: 1, 3 and 5

225

1, 3, 5, 15

3, 5, 15

Q: What are three numbers that are factors of both 15 and 30?

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That's an infinite list. Numbers with three factors are the squares of prime numbers.

15 and 30 are factors of 60. The factors of 60 include the factors of 15 and 30. 45 is not a factor of 60.

They are the first three odd prime numbers.

All numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors because they are factors that the numbers have in common. 3 is a factor of 12. 3 is a factor of 15. 3 is a common factor of 12 and 15.

You need 2 numbers to work out any common factors...You are looking for any factors which are common to both numbers.

Related questions

1 and 5

1 and 3

That's an infinite list. Numbers with three factors are the squares of prime numbers.

The factors of 10 are: 1, 2, 5, 10The factors of 15 are:1, 3, 5, 15The common factors are: 1, 5

The factors of 15 are 1, 3, 5, and 15 .The factors of 75 are 1, 3, 5, 15, 25, and 75 .The common factors ... numbers that are factorsof both 15 and 75 ... are 1, 3, 5, and 15 .

15 Factors of 15: 1, 3, 5, 15 15 = 1 x 15 15 = 3 x 5

No, they are factors of 15. Factors go into numbers, numbers go into multiples.

To find the HCF of two numbers, you have to break them down into their prime factors: 15 = 3x5 5 = 5 The next step is to identify any common factors. Both numbers have a 5 as a prime factors. Therefore the HCF of 15 and 5 is 5.

105, 210 and 315

The idea is to look for common factors, between the 15 and the 100. Then, divide both numbers by this common factor.

15 and 30 are factors of 60. The factors of 60 include the factors of 15 and 30. 45 is not a factor of 60.

Out of that group, only 30