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Is the number of days in a week composite or prime?
The number of days in a week, which is 7, is a prime number. A prime number is a number greater than 1 that can only be divided by 1 and itself without leaving a remainder. In the case of 7, it cannot be divided evenly by any other number except 1 and 7, making it a prime number.
Is 511 a prime number?
No; it isn't. 511/7 = 73. A prime number is any number that is only divisible by itself and the number 1.
Is 21 a prime number?
A prime number is any integer evenly divisible by only itself, and the number 1. Since 21 is divisible by 3 and 7, it is a composite number, not a prime number.No, 21 is not a prime number.21 is divisible by 1, 3, 7, & 21No. 21=3*7
Is the number 7 a prime number?
yes 7 is a prime number
What is the co-prime number for 72?
"The" co-prime number is wrong; for any number, there are infinitely other numbers that are co-prime with it, not just one. Get the prime factors for 72. Then, any number made up of factors that DON'T include those prime factors is co-prime with 72. For example, 49 (which is 7 x 7), or 35 (5 x 7) are coprime with 72, since neither 5 nor 7 are among the prime factors of 72.
What numbers are not a prime number?
Any number that is not a prime number.. . .Prime numbers: 1,3,5 and 7
Is 490 prime or composite number?
Composite; any number ending with zero (besides zero itself) is divisible by 10. 490 = 49 * 10 = 7 * 7 * 5 * 2
What number is relatively prime to 7?
Any number that is not a multiple of 7.Any number that is not a multiple of 7.Any number that is not a multiple of 7.Any number that is not a multiple of 7.
The ones digit of a three digit prime number is never which number 3 5 7 9?
Except for 5 itself, the units digit of a prime can't be 5. Any number ending in 5 is divisible by 5.
Why 7 is not a prime number?
'7' IS a Prime Number.
What are the Prime numbers ending in 7?
There are an infinite number of them. A few are 7, 17, 37, 47, 67, and 97.
Is 57 a even number?
No, any number ending in 7 is not even.
What are the first four Prime numbers ending in 7?
7, 17, 37, 47.You can get this from any table of prime numbers.
What is a multiple of 7 that is a prime number?
There is not a multiple of 7 that is prime.
What are the prime factorization of 7?
7 is a prime number. Its only prime factor is itself.
Is the number of days in a week composite or prime?
The number of days in a week, which is 7, is a prime number. A prime number is a number greater than 1 that can only be divided by 1 and itself without leaving a remainder. In the case of 7, it cannot be divided evenly by any other number except 1 and 7, making it a prime number.
Is he number 7 a prime number?
The number 7 is a prime number
