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What two-digit prime number has the sum of its digits that is not 7 but is a multiple of 7?
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What is a prime number with identical digits?
A prime number with identical digits is 11.
What number is a multiple of 4 and 6 and the two digits must make a prime number when added together?
I believe the number you are looking for is 96.
Is 1617 a prime number?
1617 is not a prime number. The sum of its digits is a multiple of 3, so 3 is one of its factors. A prime number has exactly two factors, 1 and the number itself, so 1617 is a composite number.
You are thinking of a number your number is a multiple of 25 your number is between 500 and 1000 the digits in your number sum 20 what is your number what are the prime factors of your number?
The number is 875 and its prime factors are 5; 5; 5 & 7.
What is the smallest positive multiple of 13 for which the sum of its digits is prime?
Start with the smallest multiple of 13 and continue with the next smallest until finding one that fits the specifications. 13, sum of digits is 1 + 3 = 4 which is not prime 26, sum of digits is 2 + 6 = 8 which is not prime 39, sum of digits is 3 + 9 = 12 which is not prime 52, sum of digits is 5 + 2 = 7 which is prime So, 52 is the smallest positive multiple of 13 for which the sum of its digits is prime.
What is a prime number with identical digits?
A prime number with identical digits is 11.
How do you determine if 1041 is a prime number?
Since its digits add up to a multiple of three, it's divisible by three. That means it's not prime.
Is 165 a prime number?
It's an odd number so it obviously can't be divided by 2. The sum of its digits (1+6+5) is a multiple of 3, so the number itself is a multiple of 3. So it's not prime.
You are a number between 6 and 150 you are one more than a square number the sum of your digits is a multiple of 5 you are a prime what number are you?
37
What number is a multiple of 4 and 6 and the two digits must make a prime number when added together?
I believe the number you are looking for is 96.
Is 1617 a prime number?
1617 is not a prime number. The sum of its digits is a multiple of 3, so 3 is one of its factors. A prime number has exactly two factors, 1 and the number itself, so 1617 is a composite number.
Is 234567 a prime number?
If the sum of digits of a number is a multiple of 3 then it is divisible by 3. Sum of digits of 234567 = 2+3+4+5+6+7 = 27 = 3x9 So, 234567 is not a prime number because it is divisible by 3.
A prime number with two identical digits?
The number 11 is prime and has two identical digits.
You are thinking of a number your number is a multiple of 25 your number is between 500 and 1000 the digits in your number sum 20 what is your number what are the prime factors of your number?
The number is 875 and its prime factors are 5; 5; 5 & 7.
What is the smallest positive multiple of 13 for which the sum of its digits is prime?
Start with the smallest multiple of 13 and continue with the next smallest until finding one that fits the specifications. 13, sum of digits is 1 + 3 = 4 which is not prime 26, sum of digits is 2 + 6 = 8 which is not prime 39, sum of digits is 3 + 9 = 12 which is not prime 52, sum of digits is 5 + 2 = 7 which is prime So, 52 is the smallest positive multiple of 13 for which the sum of its digits is prime.
Why do no digits of a prime number add up to 9?
Because they're in multiples of three - a quick way to tell if a number is a multiple of three is to add up the digits and see if the digits add up to a multiple of three e.g 576, 5+7+6=18, 1+8=9, 9 is a multiple of three
Is 711 prime?
From the sum of digits method, 711 is a multiple of 9, so no it is not prime.
