Divisibility Rules & Prime Numbers PDF

Make your parents proud bitch Name the first twenty prime numbers. They are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71. Name the first twenty composite numbers. They are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32. The number 1 is n...

Make your parents proud bitch Name the first twenty prime numbers. They are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71. Name the first twenty composite numbers. They are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32. The number 1 is neither prime nor composite. The number 2 is the smallest prime number and is the only even number that is prime. Two prime numbers are always co-primes, but two co-primes may not be prime numbers. The first five consecutive composite numbers are: 4, 6, 8, 9, and 10 The divisibility rule of three is : Add all the digits of the number, if it is divisible by three, then it is divisible by three. The divisibility rule of four: If the last two digits are divisible by four, then it is divisible by four. The divisibility rule of seven is: The divisibility rule of 7 tells us to pick the last digit of a number, multiply it by 2, and subtract the product from the rest of the number to its left. If the difference is 0 or a multiple of 7, then the given number is divisible by 7. Divisibility rule of eight is: if the last three digits of the number is divisible by eight, then it is divisible. The divisibility rule of nine is: If you add all the digits in the number, and the sum is divisible by nine, then it is divisible. HCF x LCM of two numbers = Product of the numbers