2 x 2 x 2 x 2 x 3 x 3 = 144
11 x 11 + 23 = 144
No, never.
To prove that 61 is a prime number.
7 is a prime number; its only prime factor is 7.
7 is a Prime number; its only prime factor is 7.
225 cannot be factorised into the product of only 3 prime numbers.
They are prime numbers.
75 is not a prime number as it is divisible by 3 and 5. Prime numbers are numbers that are only divisible by 1 and themselves.
Prime numbers are the numbers that can only be divided by 1 and them selves. As in 13 if you were to factor it using only whole numbers you would see that its factors are only 1 and 13. There for it is prime. While 12 you see that the factors are 1,2,3,4,6,12 meaning that it is not prime.You test several numbers, to see whether they are prime numbers, until you find a prime number.
Prime numbers.
61 and 73 are both prime numbers. Prime numbers don't have prime factorizations since they only have one prime factor. The GCF of any set of different prime numbers is 1, since they don't have any prime factors in common.
Prime numbers can not composite as - Prime number has only 2 factors whereas composite have more than 2