# What is the highest 5 digit prime number?

## What is the highest 5 digit prime number?

Part of my assignement was to find the biggest 5 digit prime number with the sum of its digits = 35, since 7+7+7+7+7=35 then the range of possible numbers would be from 77777-99999, for some reson starting from 99999 seemed more safe and after a few tries I’ve found 99971 to be the desired number.

What is a 5 digit number?

As the name says, a 5-digit number compulsorily has 5-digits in it. The smallest 5-digit number is 10,000 and the greatest 5-digit number is 99,999. There are 90,000 five-digit numbers in all. The digit at the ten thousand place in a 5-digit number can never be 0.

What is a digit prime number?

A prime-digit prime is a prime that has only the digits 2, 3, 5, or 7. E.g., 2357. Related pages (outside of this work)

### What are the first 1000 prime numbers?

List of Prime Numbers 1 to 1000

Numbers Number of prime numbers List of prime numbers
801-900 15 numbers 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887
901-1000 14 numbers 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997
Total number of prime numbers (1 to 1000) = 168

Is there a 5 digit perfect number?

What are the First 5 Perfect Numbers? The first 5 perfect numbers are 6, 28, 496, 8128, and 33550336.

What is the smallest 5 digit prime number?

10000
Write the smallest 5-digit number and express it in the form of its prime factors by tree diagram. Answer: Prime numbers are the numbers with two factors, 1 and the number itself. The smallest five-digit number = 10000.

## What are the 3 digit prime numbers?

3-Digit Primes

• 1 100s.
• 2 200s.
• 3 300s.
• 4 400s.
• 5 500s.
• 6 600s.
• 7 700s.
• 8 800s.

How do you check a prime number?

1) If the number ends in 0,2,4,6,8 then it is not prime 2) Add the digits of your number; if the sum is divisible by 3 then it is not a prime number 2329 = 2 + 3 + 2 + 3) If Steps 1 and 2 are not true then find the square root of the number 48.25 4) Divide the number by all prime numbers less than 48.25 (exclude 2, 3, 5)

How do you calculate prime numbers?

Simple division with pencil and paper can also be a good method for teaching young learners how to determine prime numbers. First, divide the number by two, then by three, four, and five if none of those factors yields a whole number.

### What are the 5 smallest prime numbers?

The 5 smallest prime numbers are 2,3,5,7,11 and HCF will be 1 as they are divisible by 1 and by itself. The 5 smallest composite numbers are 1,4,6,8,9 and HCF is same 1 for this numbers as well. Because 1 is divisible by 1 only.

What is the sum of the first 5 prime numbers?

The first five prime numbers are 2,3,5,7,11. The sum of the first five prime numbers is 28. The sum is: 2+3+5+7+11 = 28.