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Q: Multiples of Prime numbers under 20?

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Multiples of 5 are not prime numbers except 5, so there are none. But, there are prime numbers between 20 and 40, like 23, 29, 31 and 37.

No numbers that are multiples of 4 are prime numbers because they are all even numbers. All even numbers except for 2 are composite numbers. For example, multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60...

There are eight prime numbers under 20.

Everything up to and including 20.

The odd prime numbers less than 20 are 3, 5, 7, 11, 13, 17, and 19.

1,2,4,5,10,20

No, there are eight2,3,5,7,11,13,17,19note:always do ur homework

They are the multiples of 10, from 10 to 90.

21

These are the prime numbers 1-20 2,3,5,7,11,13,17,19

Factors go into numbers, numbers go into multiples. The factors of 20 are 1, 2, 4, 5, 10, 20 The multiples of 20 are 20, 40, 60, 80, 100 and so on.

0 and negative multiples of 20.

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