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What number is a factor of 70 is a prime number and 21 is a multiple?
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∙ 12y ago
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∙ 12y ago
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What number is it has 90 as a factor thre number is prime 21 is the multiple of the number?
If 21 is a multiple of the number, the number cannot have 90 as a factor.
Is 21 a factor of a prime number?
No. The only factors of a prime number are 1 and itself. The only way that 21 could be a factor of a prime number is if it were a prime number, but it is not because 21 is also divisible by 3 and 7.
Is 21 and 31 a prime number?
21 is composite number that is a multiple of 3. 31 is a prime number.
Is there a prime number that is a multiple of 21?
No, it is not possible. Every multiple of 21 is a composite number. 21 is a composite number and its factors are 1, 3, 7 and 21(4 factors). Any multiple of 21 must have all the factors of 21. So, every multiple of 21 has at least 4 factors. And a prime number has only two factors so, any multiple of 21 can't be prime.
What is a prime number for 12 and 21?
3 is a prime factor of 12 and of 21.
What is the composite number between 20 and 50 whose prime factor is 21?
21 is not a prime factor, it is 3 x 7
What number is a factor of 21 and a prime number?
21 = 3 x 7 both 3 and 7 are prime numbers
What prime number is a factor of 12 and 21?
3
What prime number is a factor of 21?
3 and 7
What are two composite number that has 42 as common multiple how is the prime factor of 42 related to these two numbers?
21 and 6 are two composite numbers that have 42 as a common multiple. One of the prime factors of 42, which is 3, is a prime factor of 21 and 6 as well. The prime factorization of 42 (2 x 3 x 7) includes the prime factorization of 21 (3 x 7) and 6 (2 x 3).
Which number is a factor of 21 an also a prime number?
They are: 3 and 7
Which number is a factor of 21 and also a prime number?
3 and 7
