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7 and 3 are prime numbers but 21 is a composite nuber
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Related questions
What are prime numbers of 21?
factors of 21: 3, 7 prime factors of 21: 3, 7
What are the prime numbers for 21?
The prime factors of 21 are 3 x 7.
What is 21 as the product of prime numbers?
It is: 3*7 = 21
What number is a factor of 21 and a prime number?
21 = 3 x 7 both 3 and 7 are prime numbers
Are 17 and 21 prime numbers?
17 is a prime number, but 21 is not (21 = 3 * 7).
What prime numbers go into 21?
They are: 3 and 7
What equals to 21 with prime numbers?
3 x 7 = 21
What are the only 2 prime numbers whose product is 21?
3 and 7 are prime numbers whose product is 21.
How do you write 21 as a product of prime numbers?
It is 3 time 7 = 21
What 2 prime numbers are factors of 21?
3 and 7
What numbers would be in a factor tree for 21?
Its factors are: 1 3 7 and 21 Note that 3 and 7 are prime numbers
How many different prime numbers are in 21?
There are two different numbers. 3 and 7
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